CA2348749C

CA2348749C - Process for preparing triazines using a combination of lewis acids and reaction promoters

Info

Publication number: CA2348749C
Application number: CA2348749A
Authority: CA
Inventors: Ram B. Gupta; Dennis J. Jakiela; Sampath Venimadhavan; Russell C. Cappadona; Venkatrao K. Pai
Original assignee: Cytec Technology Corp
Current assignee: Cytec Technology Corp
Priority date: 1998-11-17
Filing date: 1999-11-17
Publication date: 2012-01-03
Anticipated expiration: 2019-11-17
Also published as: CA2348749A1; US6730785B2; SA99200826B1; US6486316B1; WO2000029392A1; DE69933887T2; CN100497320C; AU1732000A; US20050165231A1; US20010020094A1; EP1131305A1; AU763086B2; KR100645140B1; ES2272088T3; US7485723B2; US20020013463A1; TWI259182B; US20040204585A1; EP1131305B1; JP2011184448A

Abstract

It has been now surprisingly discovered after extensive research that 2-halo-4,6-bisaryl-1,3,5-triazine can be prepared with unprecedented selectivity, efficiency, mild conditions, and in high yield by the reaction of cyanuric halide with aromatics in the presence of at least one Lewis acid and at least one reaction promoter. This reaction is also unprecedently general as a variety of aromatics can be used to produce a wide selection of 2-halo-4,6-bisaryl-1,3,5-triazines. The novel approach includes the use of the reaction promoters in combination with at least one Lewis acid under certain reaction conditions to promote the formation of 2-halo-4,6-bisaryl-1,3,5-triazine compounds from cyanuric halide. Preferably, the Lewis acids and reaction promoters are combined to form a complex. 2-halo-4,6-bisaryl-1,3,5-triazines are key intermediates for making 2-(2-oxyaryl)-4,6-bisarly-1,3,5-triazine class of UV absorbers.

Description

PROCESS FOR PREPARING TRIAZINES USING A COMBINATION OF LEWIS
ACIDS AND REACTION PROMOTERS

FIELD OF THE INVENTION
This invention relates to a novel, highly efficient and general process for making 2-(2-oxyaryl)-4,6-bisaryl-1,3,5-triazines class of trisaryl-1,3,5-triazine UV
absorbers and their precursors, 2-halo-4,6-bisaryl-1,3,5-triazines, from cyanuric halide.
More specifically, the invention relates to a novel process for the synthesis of triazine compounds in the presence of a reaction facilitator comprising at least one Lewis acid and at least one reaction promoter. The process includes the reaction of a cyanuric halide with substituted or unsubstituted aromatic compounds to produce 2-halo-4,6-bisaryl-1,3,5-triazine compounds.
This process produces halo-bisaryl-1,3,5-triazine compounds in higher yields than are possible using present methods. The triazine compounds that are produced are precursors of triazine UV absorbers which are used to stabilize organic materials against damage by light, heat, oxygen, or other environmental forces. The process of producing such UV
absorbers can be carried out step-wise or continuously in an one-pot reaction process.

Triazine UV absorbers are an important class of organic compounds which have a wide variety of applications. One of the most important areas of applications is to protect and stabilize organic materials such as plastics, polymers, coating materials, and photographic recording material against damage by light, heat, oxygen, or environmental forces. Other areas of applications include cosmetics, fibers, dyes, etc.
Triazine derived UV absorbers are a class of compounds that typically include at least one 2-oxyaryl substitucnt on the 1,3,5-triazine ring. Triazine based UV
absorber compounds having aromatic substituents at the 2-, 4-, and 6-positions of the 1,3,5-triazine ring and having at least one of the aromatic rings substituted at the ortho position with a hydroxyl group or blocked hydroxyl group are generally preferred compounds.

RB

O
R, itio Rio N N OR, :IiIt?t44:2 R, = H or a blocking group 2-(2-oxyaryl)-4,6-bisaryl-1,3,5-triazine UV absorbers In general this class of triazine UV absorber compounds is well known in the art.
Disclosures of a number of such trisaryl-1,3-5-triazines can be found in the following U.S. patents: 3,118,887;

3,242,175; 3,244,708; 3,249,608; 3,268,474; 3,423,360; 3,444,164; 3,843,371;

4,619,956;
4,740,542; 4,775,707; 4,826,978; 4,831,068; 4,962,142; 5,030,731; 5,059,647;

5,071,981;
5,084,570; 5,106,891; 5,185,445; 5,189,084; 5,198,498; 5,288,778; 5,298,067;
5,300,414;
5,323,868; 5,354,794; 5,364,749; 5,369,140; 5,410,048; 5,412,008; 5,420,008;
5,420,204;
5,461,151; 5,476,937; 5,478,935; 5,489,503; 5,543,518; 5,538,840; 5,545,836;
5,563,224;
5,575,958; 5,591,850; 5,597,854; 5,612,084; 5,637,706; 5,648,488; 5,672,704;
5,675,004;
5,681,955; 5,686,233; 5,705,643; 5,726,309; 5,726,310; 5,741,905; and 5,760,111.
A preferred class of trisaryltriazine UV absorbers (UVAs) are based on 2-(2,4-dihydroxyaryl)-4,6-bisaryl-1,3,5-triazines, i.e., compounds with two non-phenolic aromatic groups and one phenolic aromatic group advantageously derived from resorcinol.
The 4-hydroxyl group bf the parent compounds, 2-(2,4-dihydroxyaryl)-4,6-bisaryl-I,3,5-triazines, are generally functionalized to make 2-(2-hydroxy-4-alkoxyaryl)-4,6-bisaryl-1,3,5-triazine compounds for end use.
A number of commercial products exist in which the para-hydroxyl group of the phenolic ring is functionalized and the non-phenolic aromatic rings are either unsubstituted phenyl (e.g., Tinuvin 1577) or m-xylyl (e.g. Cyasorb UV-1164, Cyasorb UV-1164L, Tinuvin 400, and CGL-1545). These UV absorbers are preferred because they exhibit high inherent light stability and permanence compared to other classes of UV
absorbers such as benzotriazole and benzophenone compounds.

There are several processes known in the literature for the preparation of triazine based UV absorbers. (See, H. Brunetti and C.E. Luethi, Helvetica Chimica Acta, 1972, 55, 1566-1595, S. Tanimoto et al., Senryo to Yakahin, 1995, 40(120), 325-339).
A majority of the approaches consist of three stages. The first stage, the synthesis of the key intermediate, 2-chloro-4,6-bisaryl-1,3,5-triazine, from commercially available materials can involve single or multi-step processes. Thereafter in the second stage, 2-chloro-4,6-bisaryl-1,3,5-triazine is subsequently arylated with 1,3-dihydroxybenzene (resorcinol) or a substituted 1,3-dihydroxybenzene in the presence of a Lewis acid to form the parent compound 2-(2,4-dihydroxyaryl)-4,6-bisaryl-1,3,5-triazine. The parent compound 2-(2,4-dihydroxyaryl)-4,6-bisaryl-1,3,5-triazine, as mentioned above, may be further functionalized, e.g., alkylated, to make a final product 2-(2-hydroxy-4-alkoxyaryl)-4,6-bisaryl-1,3,5-triazine.
There have been several approaches reported in the literature on the synthesis of the key intermediate 2-chloro-4,6-bisaryl-1,3,5-triazine. Many of these approaches utilize cyanuric chloride, a readily available and inexpensive starting material. For example, cyanuric chloride is allowed to react with aromatics (ArH, such as m-xylene) in the presence of aluminum chloride (Friedel-Crafts reaction) to form 2-chloro-4,6-bisaryl-1,3,5-triazine, which is allowed to react in a subsequent step with resorcinol to form 2-(2,4-dihydroxyphenyl)-4,6-bisaryl-1,3,5-triazine (See, U.S. Patent No.
3,244,708). There are several limitations to this process, viz., the reaction of cyanuric chloride with aromatics is not selective and leads to a mixture of mono-, bis-, and tris-arylated products including unreacted cyanuric chloride (See, Scheme 1). The desired product, 2-chloro-4,6-bisaryl-1,3,5-triazine, must be isolated by crystallization or other purification methods before further reaction.

Step I:

Cl At At IAt ICI3 _ 1' + ' N~ ArM;A N
NNN"' ___ + NNN""" ___ N (soMcnl) Cl CI~ONCI Ar~ON~C'I ArA~N''Ar CILONl cyanuric chloride Mono. Isis- 'his.
is.
Step 2:

Ar OH Ar N~N AICl3; solvent N/lam ~O OH
~O~ + O IN
Ar N Cl OH Ar O
13is- Resorcinol OH
2-(2,4-dihyd roxyphenyl)-4,6-bisa ryl-1,3,5-triazines Scheme I
Another major drawback of the above mentioned process is that the reaction of cyanuric chloride with aromatics is not generally applicable to all aromatics.
It is well known in the literature that the process provides a useful yield of the desired intermediate, 2-chloro-4,6-bisaryl-1,3,5-triazine, only when m-xylene is the aromatic reagent (GB
884802). With other aromatics, an inseparable mixture of mono-, bis-, and trisaryl products are formed with no selectivity for the desired 2-chloro-4,6-bisaryl-1,3,5-triazine (See, H.
Brunetti and C.E. Luethi, Helvetica Chimica Acta, 1972, 55, 1575; and S.
Tanimoto and M.
Yamagata, Senryo to Takahin, 1995, 40(12), 325-339). U.S. Patent No. 5,726,310 describes the synthesis of m-xylene based products. 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine is first synthesized and without isolation allowed to react with resorcinol in a one-pot, two-step process to produce 2-(2,4-dihydroxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, which is subsequently purified by crystallization. A one pot process for preparing asymmetric tris-aryl- 1,3,5-triazines from cyanuric chloride as well as from mono-aryl-dichloro triazines was earlier described in U.S. Patent No. 3,268,474.
Several approaches were developed in an attempt to solve the above mentioned problems related to the formation of the key intermediate 2-chloro-4,6-bisaryl-1,3,5-triazine from cyanuric chloride. For example, cyanuric chloride is allowed to react with an aryl magnesium halide (Grignard reagent), to prepare 2-chloro-4,6-bisaryl-1,3,5-triazine (See, Ostrogovich, Chemiker-Zeitung, 1912, 78, 738; Von R. Hirt, H. Nidecker and R.
Berchtold, Helvetica Chimica Acla, 1950, 33, 365; U.S. Patent No. 4,092,466). This intermediate after isolation can be subsequently reacted in the second step with resorcinol to make a 2-(2,4-dihydroxyphenyl)-4,6-bisaryl-1,3,5-triazine (See, Scheme 2). This approach does not selectively synthesize 2-chloro-4,6-bisaryl-1,3,5-triazine; the mono- and tris-arylated products are formed in significant amounts (See, H. Brunetti and C.E. Luethi, Helvelica Chimica Acta, 1972, 55, 1575). Modifications with better results have been reported (See, U.S. Pat. No. 5,438,138). Additionally, the modified process is not suitable for industrial scale production and is not economically attractive.
ArX
Step 1:
Mg (CI Ar Ar /~ !Ar \ ArMgx N /n N T NO~N + N N + N N

C1 NCI C1NC1 ArjON~CI Ar~ON~Ar cyanuric chloride Mono- Bis- Tris-Stcp 2:

Ar OH Ar A103; solvent NN
jN )ll N 6 A ~
Ar N Cl OH Ar N
Bis- Resorcinol OH
2-(2,4-dlhyd roxyphenyl)-4,6-bisaryl-1,3,5-triazines Scheme 2 Alternate approaches were developed to solve the selectivity problem when synthesizing 2-chloro-4,6-bisaryl-1,3,5-triazine using either a Friedel-Crafts reaction or Grignard reagents, however, all solutions required additional synthetic steps.
One approach, is outlined in Scheme 3. In the first step, cyanuric chloride is allowed to react with I
equivalent of an aliphatic alcohol to make in high selectivity a monoalkoxy-bischlorotriazine. In the second step, monoalkoxy-bischlorotriazine was allowed to react with aromatics in the presence of aluminum chloride to prepare intermediates monoalkoxy/hydroxy-bisaryltriazines. These intermediates were then converted to 2-chloro-4,6-bisarayl-1,3,5-triazincs in the third step by reaction with thionyl chloride or PCIS. In the fourth step, 2-chloro-4,6-bisaryl-1,3,5-triazines were allowed to react with resorcinol Its synthesize 2-(2,4-dihy(lroxyphcnyl)-4,6-hisaryl-1,3,5-triazines. In the ahOve process, the desired product was formed with high selectivity. However, the two additional Cl Cl Ar N~ N ROH; base N N ArH; AIC13 N~ N
oO step I / step 2 C! N Cl CI N~R Ar N OH/R
cyanuric chloride Monoalkoxy PCIS
step 3 or Ar SOC12 N 0 N OH OH Ar Ar/ ' N AICI3; solvent + N~ N
o step 4 OH OH Ar N Cl 2-(2,4-dihydroxyphenyl)-4,6-bisaryl-1,3,5-triazines Resorcinol Bisaryl-monochloro Scheme 3 steps required made the process less attractive economically as an industrial process.

A similar approach is outlined in Scheme 4 (See, U.S. Patent Nos. 5,106,972 and 5,084,570). The main difference is that cyanuric chloride was first allowed to react with 1 equivalent of alkanethiol, instead of an alcohol. As with the process summarized in Scheme 3, additional steps were required, making the process neither efficient nor economically feasible.

C l Cl Ar 2Q~ ~ RSH; base .29N ~ N ArH; AICI3 N~ N
step l step 2 C11 N Cl CI R Ar N SR
cyanuric chloride Monoalkylthio step 3 or Ar CI2 N~ N OH OH Ar ~O AIC13; solvent N N
Ar N ~ O + O
step 4 OH OH Ar N Cl 2-(2,4-dihydroxyphcnyl)-4,6-bisaryl-1,3,5-triazines Resorcinol 13isaryl-monochloro Scheme 4 Recent improvements are disclosed in European patent application 0,779,280 Al and Japanese patent application 09-059263.
Other approaches do not utilize cyanuric chloride as a starting material. For example, the synthesis of 2-chloro-4,6-bisaryl-1,3,5-triazine as disclosed in EP 0497734 Al and as outlined in Scheme 5. In this process benzamidine hydrochloride is first allow to react with a chloroformate and the resulting product is then dimerized. The resulting 2-hydroxy-4,6-bisaryl- 1,3,5-triazine is converted to 2-chloro-4,6-bisaryl-1,3,5-triazine by treatment with thionyl chloride, which is subsequently allowed to react with resorcinol to synthesize 2-(2,4-dihydroxyphenyl)-4,6-bisaryl-1,3,5-triazine, as shown in Scheme 5.

S)Mthesis QfBenzamidines:
NaOMe NH NH4C1 NH
Ar-CN MeOH Ar---(OMe --~ Ar4 NH2 HCI
NH NH
2 Ar-( = 11C1 + IIaLCOOR - Ar Benzamidine hydrochloride Ar NO)LI N OH J.
Ar~N Resorcinol ~O~ SOC12 NO)ll N
011 Ar N Cl Ar~N~OH
2-(2,4-d i hydroxy)-4.6-bisaryl -1.3 5-triazines Scheme 5 An alternate approach for the preparation of 2-chloro-4,6-bisaryl-1,3,5-triazines is based on the reaction of aryl nitrites with phosgene in the presence of HCI in a sealed tube (S. Yanagida, H. Hayama, M. Yokoe, and S. Komori, J. Org. Chem., 1969, 34, 4125.
Another approach is the reaction of N,N-dimethylbenzamide with phosphoryl chloride complex which is then allowed to react with N-cyanobenzamidine to form 2-chloro-4,6-bisaryl-1,3,5-triazine (R.L.N. Harris, Synthesis, 1990, 841). Yet another approach involves the reaction of polychloroazalkenes,obtained from the high temperature of chlorination of amines, with amidines to form 2-chloro-4,6-bisaryl-1,3,5-triazines (H.G.
Schmelzer, E.
Degener and H. Holtschmidt, Angew. Chem. Internal. Ed., 1966, 5, 960; DE
1178437).
None of these approaches are economically attractive, and thus are not commercially feasible.
Finally, there are at least three approaches which do not require the intermediacy of 2-chloro-4,6-bisaryl-1,3,5-triazine for the preparation of the parent compound, 2-(2,4-dihydroxyaryl)-4,6-bisaryl-1,3,5-triazine. These approaches utilize benzonitriles or benzamidines as starting materials (See U.S. Pat. Nos. 5,705,643 and 5,478,935; WO
96/28431). The benzamidines are condensed with 2,4-dihydroxybenzaldehyde followed by aromatization (Scheme 6) or condensed with phenyl/alkyl 2,4-dihydroxybenzoates (Scheme 7) or 2-aryl-1,3-benzoxazine-4-ones (Scheme 8) to form 2-(2,4,-dihydroxyaryl)-4,6-bisaryl-1,3,5-triazine. These approaches have the drawback that the starting materials are expensive and may require additional steps to prepare. Moreover, overall yields are not satislaetory and the processes are not economically attractive.
Based on Benzamidine reactions with 2,4-Jihydroxybcn7aldehydc:
Synthesispf @enzamidirtes:

NaOMc NI{ NI-140 Nil Base N1{
Ar--CN AT--~ AT HCI Ar --~
McOH OMe NH2 neutralize NI -12 i3cnzamidinc AT
HO
NH 0 NaOMc N N OH
NH2 H McOH Ar N
H
Benzarnidine 2,4-dihydroxybenzaldehyde OH
2-(2,4-dihydroxy)-4,6-bisaryl-1,3,5-triazines sodium dithionitc or sodium bisulfitc AT
N'J" N OH
O
ArAN

OH
2-(2,4-dihydroxy)4,6-bisaryl-1,3,5-triazincs Scheme 6 Based on Benzamidine reactions with Phenyl 2,4-dihydroxybenzoate AT
HO
NH O N N OH
Ar--~ + OH ArAN
Nl{2 Ph0 Benzamidine Phcnyl 2,4-dihydroxybcnzoatc OH
2-(2,4-dihyd roxy)-4,6-bisaryl-1,3,5-triazincs Scheme 7 Based on Bcnzamidinc reactions with substituted 2-aryl-1,3-benzoxazin-4-oncs:
Synthesis o Bcnramidncs:

NaOMe NH NH4CI NH Base NH
Ar-CN Ar-( Ar- HCI - S - Ar4 MCOH OMe NH2 neutrahze NHZ
Benzamidine S,yr thesis Qf 2-a 1.3-benzoxazi-4-orics:

ArCOCI HOOOH(R) py~- Atp OH(R) - - -HzN (base) p o 2-Aryl-1,3-benzoxazin-4-ones At NH ArT;'10 OH(R) N~N OH
Ar -~ + NaOMe 1$ NHZ McOH Ar N O

Benzamidine O OH(R) 2-Aryl-1,3-benzoxazin-4-ones 2-(2,4-dthydroxy)-4,6-bisaryl-1,3,5-triazines Scheme 8 In summary, although direct Lewis acid catalyzed bisarylation of cyanuric chloride to form the desired 2-chloro-4,6-bisaryl-1,3,5-triazine intermediate is the most economically attractive approach, this process has found only limited use due to the following problems:
1. Poor selectivity: Almost total lack of selectivity for bisarylation (with the exception of m-xylene where some selectivity is observed). Mono- and iris- arylated triazines are the major by-products.
2. Poor reactivity: Typical reaction conditions require high temperatures, long reaction times, and variable temperatures during the course of reaction. Aromatics with electron-withdrawing groups (such as chlorobenzene) fail to react beyond mono-substitution even at elevated temperatures and long reaction times.
3. Safety hazards: Temperature and addition rate must be carefully monitored to avoid an uncontrollable exotherm which may result in safety hazards.
4. Poor process conditions: The reaction slurry is either thick and difficult to stir or solid thereby making stirring impossible. The process requires various reaction temperatures and addition of reactants in portions over several hours.

5. Isolation problem/poor isolated yield: Separation and purification of the desired product is difficult and isolated yields are generally poor and commercially unacceptable.
6. Not a general process: The reaction cannot be used with different aromatics other than m-xylene.
Thus, there remains a need for improved methods for synthesizing triazinc UV
absorbers.

SUMMARY OF THE INVENTION
It has been now surprisingly discovered after extensive research that 2-halo-4,6-bisaryl-1,3,5-triazine can be prepared with unprecedented selectivity, efficiency, mild conditions, and in high yield by the reaction of cyanuric halide with aromatics in the presence of a reaction facilitator comprising at least one Lewis acid and at least one reaction promoter. This reaction is also unprecedently general as a variety of aromatics can be used to produce a wide selection of2-halo-4,6-bisaryl-1,3,5-triazines. The novel approach includes the use of the reaction promoter in combination with at least one Lewis acid under certain reaction conditions to promote the formation of 2-halo-4,6-bisaryl-1,3,5-triazine compounds from cyanuric halide. Preferably, the Lewis acids and reaction promoters are combined to form a reaction facilitator in the form of a complex.
The present invention specifically relates to a process for the synthesis of a triazine compound by reacting a cyanuric halide of Formula V:

X
N)-~' N

XNX
Formula V

with at least one substituted or unsubstituted aromatic compound such as a compound of Formula II:

Rio0 Rg Formula II

wherein R,,, R,, R8, R,,, and R,, are the same or different and each is hydrogen, hak)gen, alkyl of 1 to 24 carbon atoms, haloalkyl of 1 to 24 carbon atoms, aryl of 6 to 24 carbon atoms, alkenyl of 2 to.24 carbon atoms, acyl of 1 to 24 carbon atoms, aralkyl of 7 to 24 carbon atoms, aracyl of 6 to 24 carbon atoms including substituted or unsubstituted biphenylene, OR, NRR', CONRR', OCOR, CN, SR, S02R, SO31-1, SO,M, wherein M is an alkali metal, R. and R' are the same or different and each is hydrogen, alkyl of I to 24 carbon atoms, haloalkyl of I to 24 carbon atoms, aryl of 6 to 24 carbon atoms, alkenyl of 2 to 24 carbon atoms, acyl of 1 to 24 carbon atoms, cycloalkyl of 1 to 24 carbon atoms, cycloacyl of 5 to 24 carbon atoms, aralkyl of 7 to 24 carbon atoms, or aracyl of 6 to 24 carbons-atoms, and optionally with either of Rb and R7, R7 and R8, R, and R9, or R9 and R10, taken together being a part of a saturated or unsaturated fused carbocyclic ring optionally containing 0, N, or S atoms in the ring, with the reaction being conducted in the presence of at least one reaction facilitator comprising at least one Lewis acid and at least one reaction promoter, optionally in an inert solvent, for a sufficient time at a suitable temperature and pressure to produce a triazine compound of Formula III:

AT[
N N
Ar2N X

Formula III

wherein X is a halogen and Ar, and Ar2 are the same or different and each may be the radical of a compound of Formula II:

O

Radical of Formula II
In a further embodiment, the triazine compound of Formula III is further reacted with a compound of Formula IV:

OR, Rs /0' 4 Formula IV

wherein R,, R2, R3, R4,and R5 are the same or different and each is hydrogen, halogen, alkyl of 1 to 24 carbon atoms, haloalkyl of 1 to 24 carbon atoms, alkenyl of 2 to 24 carbon atoms, acyl of 1 to 24 carbon atoms, aryl of 6 to 24 carbon atoms, cycloalkyl of 5 to 25 carbon atoms, cycloacyl of 5 to 24 carbon atoms, aralkyl of 7 to 24 carbon atoms, aracyl of 6 to 24 carbons atoms, substituted or unsubstituted biphenylene, substituted or unsubstituted naphthalene, OR, NRR', CONRR', OCOR, CN, SR, S02R, S03H, S03M, wherein M is an alkali metal, R. and R' are the same or different and each is hydrogen, alkyl of I to 24 carbon atoms, haloalkyl of I to 24 carbon atoms, aryl of 6 to 24 carbon atoms, alkenyl of 2 to 24 carbon atoms, acyl of 1 to 24 carbon atoms, cycloalkyl of I to 24 carbon atoms, cycloacyl of 5 to 24 carbon atoms, aralkyl of 7 to 24 carbon atoms, or aracyl of 6 to 24 carbons atoms, optionally with either of R3 and R4, or R4 and R5, taken together being a part of a saturated or unsaturated fused carbocyclic ring optionally containing 0, N, or S atoms in the ring, and Y is a direct bond, 0, NR", or SR", wherein R" is hydrogen, alkyl of 1 to 24 carbon atoms, haloalkyl of 1 to 24 carbon atoms, aryl of 6 to 24 carbon atoms, alkenyl of 2 to 24 carbon atoms, acyl of I to 24 carbon atoms, cycloalkyl of 1 to 24 carbon atoms, cycloacyl of 5 to 24 carbon atoms, aralkyl of 7 to 24 carbon atoms, or aracyl of 6 to 24 carbons atoms, optionally in the presence of an additional Lewis acid, additional reaction promoter, or additional reaction facilitator, for a sufficient time at a suitable temperature and pressure, optionally in the presence of an inert solvent, to produce a compound of Formula 1:

Are N)~ N ORi Ar AN Y

Formula I

The reaction to form the compound of Formula III and the reaction to form the compound of Formula I can be carried out without isolating the compound of Formula III.
Another embodiment relates to a process for synthesizing a triazine compound of Formula I:

Art N N ORi Ar21N

Formula I

wherein Ari and Are are the same or different, and each independently is a radical of a compound of Formula II:

R10 I0I Ra Formula II
wherein R6, R,, R8, R9, and R10 are the same or different and each is hydrogen, halogen, alkyl of 1 to 24 carbon atoms, haloalkyl of 1 to 24 carbon atoms, aryl of 6 to 24 carbon atoms, alkenyl of 2 to 24 carbon atoms, acyl of I to 24 carbon atoms, aralkyl of 7 to 24 carbon atoms, aracyl of 6 to 24 carbon atoms including substituted or unsubstituted biphcnylenc, OR, NRR', CONRR', OCOR, CN, SR, S02R, SO31 I, SO,M, wherein M is an alkali metal, R. and R' are the same or different and each is hydrogen, alkyl of 1 to 24 carbon atoms, haloalkyl of I to 24 carbon atoms, aryl of 6 to 24 carbon atoms, alkenyl of 2 to 24 carbon atoms, acyl of I to 24 carbon atoms, cycloalkyl of I to 24 carbon atoms, cycloacyl of S to 24 carbon atoms, aralkyl of -7 to 24 carbon atoms, or aracyl of 6 to 24 carbons atoms, and optionally with either of R6 and R7, R7 and R,, R. and R9, or R.9 and Rio, taken together being a part of a saturated or unsaturated fused carbocyclic ring optionally containing 0, N, or S atoms in the ring, which comprises:
simultaneously reacting in the presence of a reaction facilitator comprising at least one Lewis acid and at least one reaction promoter, sufficient amounts of a cyanuric halide of Formula V:

X
~X N X
i0i Formula V
where each X is independently a halide such as fluorine, chlorine, bromine or iodine, with a compound of Formula IV:

OR, Rs R4 Formula IV
wherein R,, R2, R3, R4,and RS are the same or different and each is hydrogen, halogen, alkyl of I to 24 carbon atoms, haloalkyl of I to 24 carbon atoms, alkenyl of 2 to 24 carbon atoms, acyl of I to 24 carbon atoms, aryl of 6 to 24 carbon atoms, cycloalkyl of 5 to 25 carbon atoms, cycloacyl of 5 to 24 carbon atoms, aralkyl of 7 to 24 carbon atoms, aracyl of 6 to 24 carbons atoms, substituted or unsubstituted biphenylene, substituted or unsubstituted naphthalene, OR, NRR', CONRR', OCOR, CN, SR, SO2R, SO3H, SO3M, wherein M is an alkali metal, R and Rare the same or different and each is hydrogen, alkyl of I to 24 carbon atoms, haloalkyl of I to 24 carbon atoms, aryl of 6 to 24 carbon atoms, alkenyl of 2 to 24 carbon atoms, acyl of 1 to 24 carbon atoms, cycloalkyl of 1 to 24 carbon atoms, cycloacyl of to 24 carbon atoms, aralkyl of 7 to 24 carbon atoms, or aracyl of 6 to 24 carbons atoms, optionally with either of R3 and R4, or R4 and R5, taken together being a part of a saturated 5 or unsaturated fused carhocyclic ring optionally containing 0, N, or S atoms in the ring, and Y is a direct bond, 0, NR", or SR", wherein R" is hydrogen, alkyl of I to 24 carbon atoms, haloalkyl'of I to 24 carbon atoms, aryl of 6 to 24 carbon atoms, alkenyl of 2 to 24 carbon atoms, acyl of 1 to 24 carbon atoms, cycloalkyl of I to 24 carbon atoms, cycloacyl of 5 to 24 carbon atoms, aralkyl of 7 to 24 carbon atoms, or aracyl of 6 to 24 carbons atoms, and a compound of Formula 11:

Rio R8 Formula II
for a sufficient time, at a suitable temperature and pressure to form the compound of Formula 1.
Another embodiment relates to a process for synthesizing a triazine compound of Formula 1:

Art NON OR, YR~
Are N

Formula I

wherein Ar, and Ar2 are the same or different, and each independently is a radical of a compound of Formula II:

Formula II
wherein R6, R7, R8i R9, and R10 are the same or different and each is hydrogen, halogen, alkyl of l to 24 carbon atoms, haloalkyl of I to 24 carbon atoms, aryl of 6 to 24 carbon atoms, alkenyl of 2 to 24 carbon atoms, acyl of 1 to 24 carbon atoms, aralkyl of 7 to 24 carbon atoms, aracyl of 6 to 24 carbon atoms including substituted or unsubstituted biphenylene, OR, NRR', CONRR', OCOR, CN, SR, SO2R, SO3H, SO3M, wherein M is an alkali metal, R and R' are the same or different and each is hydrogen, alkyl of I to 24 carbon atoms, haloalkyl of I to 24 carbon atoms, aryl of 6 to .24 carbon atoms, alkenyl of 2 to 24 carbon atoms, acyl of I to 24 carbon atoms, cycloalkyl of 1 to 24 carbon atoms, cycloacyl of 5 to 24 carbon atoms, aralkyl of 7 to 24 carbon atoms, or aracyl of 6 to 24 carbons atoms, and optionally with either of R6 and R7, R7 and R8, R8 and R9, or R9 and R10, taken together being a part of a saturated or unsaturated fused carbocyclic ring optionally containing 0, N, or S atoms in the ring, which comprises:
reacting in the presence of a reaction facilitator comprising at least one Lewis acid and at least one reaction promoter, sufficient amounts of a compound of Formula III:

Art 'J~
ON
ArcNN1 Formula III

wherein X is independently a halide such as fluorine, chlorine, bromine or iodine and Ar, and Are are the same or different and each is a radical of a compound of Formula lI;
with a compound of Formula IV:

Olt, Rs R4 Formula IV

wherein R1, R,, R3, R4,and R5 are the same or different and each is hydrogen, halogen, alkyl of 1 to 24 carbon atoms, haloalkyl of I to 24 carbon atoms, alkenyl of 2 to 24 carbon atoms, acyl of I to 24 carbon atoms, aryl of 6 to 24 carbon atoms, cycloalkyl of 5 to 25 carbon atoms, cycloacyl of 5 to 24 carbon atoms, aralkyl of 7 to 24 carbon atoms, aracyl of 6 to 24 carbons atoms, substituted or unsubstituted biphenylene, substituted or unsubstituted naphthalene, OR, NRR', CONRR', OCOR, CN, SR, SO2R, SO3H, SO3M, wherein M is an alkali metal, R and R' are the same or different and each is hydrogen, alkyl of I to 24 carbon atoms, haloalkyl of 1 to 24 carbon atoms, aryl of 6 to 24 carbon atoms, alkenyl of 2 to 24 carbon atoms, acyl of I to 24 carbon atoms, cycloalkyl of 1 to 24 carbon atoms, cycloacyl of 5 to 24 carbon atoms, aralkyl of 7 to 24 carbon atoms, or aracyl of 6 to 24 carbons atoms, optionally with either of R3 and R,, or R4 and Rs, taken together being a part of a saturated or unsaturated fused carbocyclic ring optionally containing 0, N, or S atoms in the ring, and Y is a direct bond, 0, NR", or SR". wherein R" is hydrogen, alkyl of I to 24 carbon atoms, haloalkyl of 1 to 24 carbon atoms, aryl of 6 to 24 carbon atoms, alkenyl of 2 to 24 carbon atoms, acyl of I to 24 carbon atoms, cycloalkyl of 1 to 24 carbon atoms, cycloacyl of 5 to 24 carbon atoms, aralkyl of 7 to 24 carbon atoms, or aracyl of 6 to 24 carbons atoms, for a sufficient time, at a suitable temperature and pressure to form the compound of Formmula I.
DETAILED DESCRIPTION OF THE INVENTION
The present inventors have found that by using a combination comprising of at least one Lewis acid and at least one reaction promoter, preferably combined to form a reaction facilitator, the reaction of a cyanuric halide with substituted or unsubstituted aromatic compounds can prepare triazine derived 2-halo-4,6-bisaryl-1,3,5-triazine compounds in higher yield, with higher selectivity, at a lower reaction temperature, and/or within shorter reaction times than previously known.
Even more surprising is the fact that the reaction facilitator has been used with excellent results. This approach is in stark contrast to the state of the prior art where the use of anhydrous Lewis acids alone has always been advocated for this reaction step. It has also been discovered that 2-halo-4,6-hisaryl-1,3,5-triazines of this invention can he further reacted, without isolation, with a variety of phenolic derivatives to form 2-(2-oxyaryl)-4,6-hisaryl-13,5-triazine. Furthermore, the reaction can be applied to a variety of aromatic compounds. The key reasons for the increase in selectivity and reactivity has been shown to be the use of the reaction promoter.
As used herein, the cyanuric halide is a compound of the Formula V:
X
N N
~Oi X N X
Formula V

where each X is independently a halide such as fluorine, chlorine, bromine, or iodine.
The term aromatic compound is to include compounds of the Formula II:

O
Rio R8 Formula II
wherein R6i R7, R8, R9, and R10 are the same or different and each is hydrogen, halogen, alkyl of I to 24 carbon atoms, haloalkyl of I to 24 carbon atoms, aryl of 6 to 24 carbon atoms, alkenyl of 2 to 24 carbon atoms, acyl of I to 24 carbon atoms, aralkyl of 7 to 24 carbon atoms, aracyl of 6 to 24 carbon atoms including substituted or unsubstituted biphenylene, OR, NRR', CONRR', OCOR, CN, SR, S02R, SO3H, S03M, wherein M is an alkali metal, R and R' are the same or different and each is hydrogen, alkyl of 1 to 24 carbon atoms, haloalkyl of I to 24 carbon atoms, aryl of 6 to 24 carbon atoms, alkenyl of 2 to 24 carbon atoms, acyl of I to 24 carbon atoms, cycloalkyl of 1 to 24 carbon atoms, cycloacyl of 5 to 24 carbon atoms, aralkyl of 7 to 24 carbon atoms, or aracyl of 6 to 24 carbons atoms, and optionally with either of R6 and R7, R7 and R8i R8 and R9, or R9 and R10, taken together being a part of a saturated or unsaturated fused carbocyclic ring optionally containing 0, N, or S atoms in the ring.
Preferred aromatic compounds include benzene, toluene, ethylbenzene, m-xylene, o-xylene, p-xylene, chlorobenzene, dichlorobenzene, mesitylene, isobutylbenzene, isopropyl benzene, m-diisopropyl benzene, tetralin, biphenyl, naphthalene, acetophenone, benrophenone, acetanilide, anisole, thioanisole, resorcinol, bishexyloxy resorcinol, bisoctyloxy resorcinol, m-hexyloxy phenol, m-octyloxy phenol, or a mixture thereof.
The term "phenolic compound" is to include compounds of the formula IV:

ORS

RS

Formula IV
wherein R1, R,, R3, R,,and RS are the same or different and each is hydrogen, halogen, alkyl of I to 24 carbon atoms, haloalkyl of 1 to 24 carbon atoms, alkenyl of 2 to 24 carbon atoms, acyl of I to 24 carbon atoms, aryl of 6 to 24 carbon atoms, cycloalkyl of 5 to 25 carbon atoms, cycloacyl of 5 to 24 carbon atoms, aralkyl of 7 to 24 carbon atoms, aracyl of 6 to 24 carbons atoms, substituted or unsubstituted biphenylene, substituted or unsubstituted naphthalene, OR, NRR', CONRR', OCOR, CN, SR, SO2R, SO3H, SO3M, wherein M is an alkali metal, R and R' are the same or different and each is hydrogen, alkyl of 1 to 24 carbon atoms, haloalkyl of I to 24 carbon atoms, aryl of 6 to 24 carbon atoms, alkenyl of 2 to 24 carbon atoms, acyl of 1 to 24 carbon atoms, cycloalkyl of 1 to 24 carbon atoms, cycloacyl of 5 to 24 carbon atoms, aralkyl of 7 to 24 carbon atoms, or aracyl of 6 to 24 carbons atoms, optionally with either of R3 and R4, or R4 and R5, taken together being a part of a saturated or unsaturated fused carbocyclic ring optionally containing 0, N, or S atoms in the ring, and Y is a direct bond, 0, NR", or SR", wherein R" is hydrogen, alkyl of 1 to 24 carbon atoms, haloalkyl of I to 24 carbon atoms, aryl of 6 to 24 carbon atoms, alkenyl of 2 to 24 carbon atoms, acyl of I to 24 carbon atoms, cycloalkyl of 1 to 24 carbon atoms, cycloacyl of 5 to 24 carbon atoms, aralkyl of 7 to 24 carbon atoms, or aracyl of 6 to 24 carbons atoms.
Preferred phenolic compounds are substituted or unsubstituted monohydroxybenzene, monalkoxybenzene, dihydroxybenzene, dialkoxybenzene, hydroxyalkoxybenzene, trihydroxybenzene, trialkoxybenzene, hydroxybisalkoxybenzene, and bishydroxyalkoxybenzene. More preferred phenolic compounds are: resorcinol (1,3-dihydroxybenzene); C-alkylated resorcinols, e.g., 4-hexylresorcinol; mono-O-alkylated resorcinols, e.g., 3-methoxyphenol, 3-octyloxyphenol, 3-hexyloxyphenol, etc.;
di-O-alkylated resorcinols, e.g., 1,3-dimethoxybenzene, 1,3-dioctylbenzene, 1,3-dihexyloxybenzene; C-alkylated-di-O-alkylated resorcinols, e.g., 4-hexyl-1,3-di methoxybenzene; other polyhydroxy, polyalkoxy, hydroxy-alkoxy aromatics, e.g., 1,3,5-11ihy(iroxyl.)cnzcne, I,3,5-trialkoxyhcnzenc, 1,4-dihydroxybenzenc, I-hydroxyy-4-alkoxybenzene, or mixtures thereof.
The term "Lewis acid" is intended to include aluminum halides, alkylaluminum halides, boron halides, tin halides, titanium halides, lead halides, zinc halides, iron halides, gallium halides, arsenic halide, copper halides, cadmium halides, mercury halides, antimony halides, thallium halides, zirconium halides, tungsten halides, molybdenum halides, niobium halides, and the like. Preferred Lewis acids include aluminum trichloride, aluminum tribromide, trimethylaluminum, boron trifluoride, boron trichloride, zinc dichloride, titanium tetrachloride, tin dichloride, tin Ictrachloride, ferric chloride, or a mixture thereof.
As used herein the term "reaction promoter" is understood to comprise a compound which is used in combination with the Lewis acid to facilitate the reaction.
Thus, triazine compounds are produced at lower reaction temperatures, greater yields, or higher selectivities compared to the use of the Lewis acid alone. Suitable reaction promoters include acids, bases, water, alcohols, aliphatic halides, halide salts, acid halides, halogens, alkenes, alkynes, ester, anhydride, carbonate, urethane, carbonyl, epoxy, ether, acetal compounds, or mixtures thereof.
Suitable alcohol compounds include carbon compounds of C1-C20, straight chain or branched, saturated or unsaturated, cyclic or non-cyclic, aromatic or non-aromatic, which has at least one hydroxyl group and which optionally contains at least one halide, thiol, thiol ether, amines, carbonyl, esters, carboxylic acids, amide, etc. Suitably alcohols include methanol, ethanol, propanol, butanol, isobutanol,-butanol, 1,2-ethanediol, 3-chloro-l-propanol, 2-hydroxyl-acetic acid, 1-hydroxyl-3-pentanone, cyclohexanol, cyclohexenol, glycerol, phenol, m-hydroxyl-anisole, p-hydroxyl-benzylamine, benzyl alcohol, etc.
Suitable acid compounds include any inorganic or organic acid that contains at least one acidic proton, which may or may not be dissolved in an aqueous or organic solution.
The organic acids include any organic compound that contains at least one acidic functional group including RCO2H, RSO3H, RSO2H, RSH, ROH, RPO3H, RPO2H, wherein R is as defined above. Preferred protic acids include HCI, HBr, HI, HNO3, HNO2, H2S, H2SO4, H3PO4, H2CO3, acetic acid, formic acid, proprionic acid, butanoic acid, benzoic acid, phthalic acid, oxalic acid, malonic acid, succinic acid, glutaric acid, adipic acid, methanesulfonic acid, and p-toluenesulfonic acid or mixtures thereof.
Suitable aliphatic halides include C1-C20 hydrocarbon compounds, saturated or unsaturated, cyclic or non-cyclic, aromatic or non-aromatic, that are substituted with at least one halide. Optionally, the aliphatic halide may be substituted in one or more positions with an hydroxyl, an ether, a polyether, a thiol, a thioether, an amine, such as -NHR, -NR'2, -NRR', a carboxylic acid, an ester, an amide or a carbon structure of C1-C20 group which may he saturated or unsaturated and cyclic or non-cyclic, aromatic and which optionally may be substituted with any of the above preceding groups or mixtures thereof.
Specific aliphatic halide compounds that are suitable include carbon tetrachloride, chloroform, methylene chloride, chloromethane, carbon tetrabromide, tert-butylchloride, brrnnoform, dibroniomcthane, hromomcthane, diiodomethanc, iodomethanc, dichloroethanc, dibromocthanc, chloroethanol, bromoethanol, benzyl chloride, benzyl bromide, ethanolamine, chloroacetic acid, bromoacetic acid or mixtures thereof.
The bases that are suitable include inorganic or organic bases dissolved either in water, an organic solvent, or a mixture ol'solvents. Inorganic bases include LiOI I, NuOI I, KOH, Mg(OH)2, Ca(OH)2, Zn(OH)2, Al(OH)3i NH4OH, Li2CO3, Na2CO3, K2C03, MgCO3, CaCO3, ZnCO3, (Al)3(CO3)2i (NH4)3CO3, LiNH2, NaNH2, KNH2, Mg(NH2)2, Ca(NH2)2, Zn(NH,)2, Al(NH2)3, or a mixture thereof. Organic bases include hydrocarbon compounds with C1-C9 cyclic or non-cyclic that contain at least one alkoxide, amine, amide, carboxylate, or thiolate and which may be substituted in one or more positions with a halide, an hydroxyl, an ether, a polyether, a thiol, a thioether, an amine, such as -NHR, -NR'2, -NRR', a carboxylic acid, an ester, or an amide. Organic bases include CH3O', CH3CH2O-, CH3CH2CH2O', (CH3)2CHO', ((CH3)2CH)2CH0', CH3CH2CH2CH2O-, (CH3)3C0', CH3NH2, CH3CH2NH2, CH3CH2CH2NH2, (CH3)2CHNH2, ((CH3)2CH)2CHNH2, CH3CH2CH2CH2NH2, (CH3)3CNH2, (CH3)2NH, (CH3CH2)2NH, (CH3CH2CH2)2NH, ((CH3)2CH)2NH, (((CH3)2CH)2CH)2NH, (CH3CH2CH2CH2)2NH, ((CH3)3C)2NH, (CH3)3N, (CH3CH2)3N, (CH3CH2CH2)3N, ((CH3)2CH)3N, (((CH3)2CH)2CH)3N, (CH3CH2CH2CH2)3N, ((CH3)3C)3N, CH3NH-, CH3CH2NH-, CH3CH2CH2NH-, (CH3)2CHNH-, ((CH3)2CH)2CHNH-, CH3CH2CH2CH2NH-, (CH3)3CNH', (CH3)2N-, (CH3CH2)2N-, (CH3CH2CH2)2N', ((CH3)2CH)2N-, (((CH3)2CH)2CH)2N', (CH3CH2CH2CH2)2N', ((CH3)3C)2N-, pyrrolidine, piperidine, pyrrole, pyridine, aniline, tetramethylenediamine, the corresponding deprotonated amine, and a cation were appropriate. Organic bases also includes salts of deprotonated carboxylic acids such as salts of formate, acetate, propylate, butanoate, benzoate, with Li, Na, K, Mg, Ca, Al, Zn, or any other suitable cation.
Organic base includes mixtures of the aforementioned inorganic and organic bases, or a mixture thereof.
Halogen reaction promoters include fluorine, chlorine, bromine, iodine, or mixed halogens dissolved in either water, an organic solvent, or a mixture of solvents or present as part of an organic or inorganic compound. Halogenated solvents that are suitable include dichloromethane, chloroform, carbon tetrachloride, dibromomethane, bromoform, iodomethane, diiodomethane, dichloroethane, 1,1,2,2-tetrachloroethane, benzene, toluene, acetone, acetic acid, hexane, or a mixture thereof.

Additional reaction promoters that are suitable include hydrocarbon compounds of Formula VI:

C

Formula VI

wherein Rõ and R12 are either the same or different, may be taken together, hydrogen, hydrocarbon C,-C20, saturated or unsaturated, aromatic or non-aromatic, cyclic or non-cyclic, hydroxyl, ether, amine, substituted amine, carboxylate, ester, amide, and may be substituted at least once with a halide, hydroxyl, amine, amide, thiol, thioether, carboxylate, or a carbon structure of C,-C12 group which may be saturated or unsaturated and cyclic or non-cyclic, and which optionally may be substituted with any of the above preceding groups, or mixtures thereof.
Additional compounds of Formula VI include those wherein Rõ and R12 are either the same or different, may be taken together, hydrocarbon C,-C12i saturated or unsaturated, cyclic or non-cyclic, hydroxyl, ether, amine, substituted amine, carboxylate, ester, amide, and may be substituted at least once with a halide, hydroxyl, amine, amide, thiol, thioether, carboxylate, or a carbon structure of C,-C7 group which may be saturated or unsaturated and cyclic or non-cyclic, and which optionally may be substituted with any of the above preceding groups, including hydrocarbon compounds acetaldehyde, butyraldehyde, glutaric dialdehyde, crotonaldehyde, benzaldehyde, acetone, methyl vinyl ketone, acetophenone, cyclohexanone, 2-cyclohexen-1-one, methyl acrylate, acetic anhydride, crotonic anhydride, phthalic anhydride, succinic anhydride, maleic anhydride, dimethyl adipate, diethyl phthalate, dimethyl carbonate, ethylene carbonate, diphenyl carbonate, phenyl carbamate, benzyl carbamate, methyl carbamate, urethane, propyl carbomate, or mixtures thereof.
Suitable ether compounds as reaction promoters include hydrocarbon compounds C2-C20, saturated or unsaturated, aromatic or non-aromatic, cyclic or non-cyclic, that have at least one C-0-C bond, and optionally are substituted with at least one halide, hydroxyl, amine, thiol, thioether,.carboxylic acid, ester, or a carbon structure of C1-C12 group which may be saturated or unsaturated and cyclic or non-cyclic, and which optionally may be substituted with any of the above preceding groups or mixtures thereof.
Additional ether compounds are hydrocarbon compounds of C2-C12 that have at least one C-O-C bond, saturated or unsaturated, aromatic or non-aromatic, cyclic or non-cyclic, and may be substituted at least once with a halide, hydroxyl, amine, ether, thiol, thioether, carboxylic acid, ester, or a carbon structure of C1-C7 group which may be saturated or unsaturated and cyclic or non-cyclic, and which optionally may be substituted with any of the above preceding groups including hydrocarbon compounds dirnethyl ether, isopropyl ether, dipropyl ether, lerl-amyl methyl ether, tert-butyl ethyl ether, allyl phenyl ether, allyl propyl ether, 4-methoxyphenyl ether, 3,3-dimethyl oxetane, dioxane, tetrahydropyran, tetrahydro-4H-pyran-4-ol, ethylene oxide, propylene oxide, styrene oxide, glycidol, glycidyl methyl ether, glycidyl butyrate, glycidyl methacrylate, 1,2-epoxy-3-phenoxypropane, 1,2-epoxyhexane, I -chloro-2,3-epoxypropane, diethyl acetal, 2,2-dimethoxypropane, 1, 1 -dimethoxycyclohexane, 2-hexenal diethyl acetal, 3-chloropropionaldehyde diethyl acetal, benzaldehyde dimethyl acetal, 1,1,3-timethoxypropane, or a mixture thereof.
Alkene reaction promoters include hydrocarbon compounds C2-C20 that include at least one C-C double bond or C-C triple bond, whether the compounds are cyclic, heterocyclic or non-cyclic, and where the compounds are optionally substituted at least once with a halide, hydroxyl, amine, ether, thiol, thioether, carboxylic acid, ester, or a carbon structure of C1-C12 group which may be saturated or unsaturated and cyclic or non-cyclic, and which optionally may be substituted with any of the above preceding groups, or mixtures thereof.
Additional alkene reaction promoters include hydrocarbon compounds of C2-C12 with at least one C-C double bond or C-C triple bond, cyclic, heterocyclic or non-cyclic, and may be substituted at least once with a halide, hydroxyl, amine, ether, thiol, thioether, carboxylic acid, ester, or a carbon structure of C,-C7 group which may be saturated or unsaturated and cyclic or non-cyclic, and which optionally may be substituted with any of the above preceding groups including hydrocarbon compounds 2-methylpropene, I -butene, 2-butene, 2-methyl-2-butene, 1-pentene, 2-methyl-2-pentene, 3-methyl-2-pentene, 2-pentene, 2-methyl-2-pentene, 3-methyl-2-pentene, 4-methyl-2-pentene, 2-methyl-pentenoic acid, 3-methyl-l-penten-3-ol, 5-chloro-l-pentene, 4-bromo-2-methyl-2-butene, 1,4-pentadiene, 2,6-heptadienoic acid, hexatriene, cyclohexene, cyclohexadiene, cyclopentadiene, 2-cyclopenten-l-one, 2-methylfuran, styrene, methylstyrene, methyl vinyl ketone, acrylic acid, methyl acrylate, I -pentyne, 2-pentyne, 2-pentyn-l-ol, 6-chloro-l-hexyne, 1,6-heptadiyne, or mixtures thereof.
Further reaction promoters include compounds of the formula RCOX, RSOX, RSO2X, or RPOX wherein at least one carbon, sulfur, or phosphorus atom is double bonded with at least one oxygen atom or phosphorous halides such as PX3 and PX5 wherein X is at least one halide from the group F, Cl, Br, and I. R is at least one halide or hydrocarbon C1-C20 saturated or unsaturated, cyclic or non-cyclic, and may be substituted at least once with a halide, hydroxyl, amine, ether, thiol or mixtures thereof.

Compounds where R includes chloro, hromo, methyl, ethyl, propyl, isopropyl, butyl.
phenyl, tolyl, naphthalyl, X includes F, Cl, Br, I, including compounds such as thionyl chloride, thionyl bromide, phosphorus oxybromide, phosphorus oxychloride, phosgene, acetyl chloride, acetyl bromide, benzoyl chloride, benzoyl bromide, toluoyl chloride, toluenesulfonyl chloride, terephthaloyl chloride, terephthaloyl bromide, oxalyl dichloride, oxalyl dibromide, succinyl dichloride, glutaryl dichloride, adipoyl dichloride, pimeloyl dichloride, mcthanesulfonyl chloride, ethanesulfonyl chloride, propanesulfonyl chloride, isopropylsulfonyl chloride, butanesulfonylchloride, benzenesulfonyl chloride, methyl dichlorophosphite, phosphoric acid halides, PC13, PBr3, PC15, PBr5, or mixtures thereof are suitable.
Compounds of the formula MaXb are also suitable reaction promoters, wherein the bond dissociation energy of M-X is about less than 145 kcal/mol at 298 Kelvin and where M includes at least one metal or organic cation of the formula NR4+, SR3+, or PR4+ where R
includes C,-C6 which may be substituted at least one halide, hydroxyl, amine, ether, thiol or mixtures thereof and where X is at least one anion.
Inorganic or organic compounds defined above that are suitable are also soluble in water or organic solvents such as methanol, ethanol, isopropanol, methylene chloride, acetone, diethyl ether, tetrahydrofuran, ethylene glycol, xylene, and chlorobenzene. These compounds include antimony halides, arsenic halides, barium halides, beryllium halides, bismuth halides, boron halides, cadmium halides, calcium halides, cerium halides, cesium halides, cesium tetrachloroaluminates, cobalt halides, copper halides, gold halides, iron halides, lanthanum halides, lithium halides, lithium tetrachloroaluminates, magnesium halides, manganese halides, mercury halides, nickel halides, osmium halides, phosphorus halides, potassium halides, potassium hydrogen fluorides, potassium tetrachloroaluminates, rhodium halides, samarium halides, selenium halides, silver halides, sodium halides, tin halides, lanthanum halides, sodium hydrogen fluorides, sodium tetrachloroaluminates, sodium/potassium tetracloroaurates, sodium/potassium/lithium/zinc/copper tetrafluoroborates, thalium halides, titanium chloride-aluminum chlorides (x:y), titanium halides, yttrium halides, zinc halides, zirconium halides, ammonium halides, tetraalkyl quaternary ammonium halides, aralkyl trialkylquaternary ammonium halides, arayl trialkylammonium halides, alkyl N-alkylimidazolium halides, aralkyl N-alkylimidazolium halides, alkyl N-aralkylimidazolium halides, N-alkylpyridinium halides, N-alkylisoquinolinium halides, N-alkylquinolinium halides, triphenylphosphonium halides, haloalkyl triphenylphosphonium halides, carboxyalkyl triphenylphosphonium halides, carbalkoxyalkyl triphenylphosphonium halides, cycloalkyl triphenylphosphonium halides, alkenyl triphenylphosphonium halides, aralkyltriphenylphosphonium halides, hydroxyaralkyl phosphonium halides, tetraphenylphosphonium halides, trialkylsulphonium halides, including but not limited to, inorganic compounds where M includes Li', Na', K', Mg2+, Cat+, Sr2+, Bat+, Ti4+, Coe+, Nit+, Cu+, Cue+, Sn2+, Sn4+, Pb2+, Pb4+, Ce3+, and Ce4+;
organic compounds where M includes 'N(Cl 13)4, 'N(C112C113)4, 'N(CI 12CI
12C113)4, +N(CH2CH2CH2CH3)4, +NPh4, +P(CH3)4, +P(CH2CH3)4, +P(CH2CH2CH3)4, 'P(Cl-12C1-I2CH2CI-l3)4%'PPh4i'S(CH3)3,'S(CH2CH3)3,~S(C1-I2CH2CH3)3i +S(CH,CH2CH2CH3)3, +SPh3, pyridinium, imidazolium, pyrrolidinium, and pyrrolium, and X includes inorganic X includes Cl', Br, I', S2-, 02., C032-, S032-, S042', NO2', N03-, BF4', OH-, P032-, P042', C104-, MnO4-; organic X includes HC02, CH3CO2', CH3 , CH3CH2 , Ph-, CH30', CH3CH2O-, Ph0', CH3S', CH3CH2S', PhS-, CH3NH-, CH3CH2NH-, PhNH- or mixtures thereof.
The reaction promoter may also be water alone or as an aqueous solution or aqueous suspension, that contains other components therein, such as one or more of the promoters mentioned above.
Optionally, a combination of at least one Lewis acid and at least one reaction promoter, i.e. a reaction facilitator, is prepared before being added to the reactants.
The term "solvent" includes hydrocarbon compounds C,-C24 saturated or unsaturated, cyclic or non-cyclic, aromatic or non-aromatic, optionally substituted with at least one halide, nitro, or sulfide group. Preferred solvents are hydrocarbons C,-Cg, saturated or unsaturated, such as nitroalkanes, heptane, cyclohexane, benzene, nitrobenzene, dinitrobenzene, toluene, xylene, 1,1,2,2-tetrachloroethane, dichloromethane, dichloroethane, ether, dioxane, tetrahydrofuran, benzonitriles, dimethylsulfoxide, tetramethylene sulfone, carbon disulfide, and benzene rings substituted with at least one halide such as chlorobenzene, dichlorobenzene, trichlorobenzene, fluorobenzene, difluorobenzene, trifluorobenzene, bromobenzene, dibromobenzene, tribromobenzene, or mixtures thereof.
The products of the present process include halo-bisaryl-1,3,5-triazine compounds or trisaryl-1,3,5-triazine compounds wherein the aromatic compounds include a CS-unsaturated ring, such as cyclopentadiene, phenyl, biphenyl, indene, naphthalene, tetralin, anthracene, phenanthrene, benzonaphthene, fluorene, which may be substituted in one or more positions with a halide, an hydroxyl, an ether, a polyether, a thiol, a thioether, an amine, such as -NHR,-NR2, -NRR', a carboxylic acid, an ester, an amide or a C1-C12 group which may be saturated or unsaturated and cyclic or non-cyclic, and which optionally may be substituted with any of the above preceding groups. A general structure of useful compounds is shown above in Formulas I and Ill.
Preferred products include chloro-bisaryl-1,3,5-triazine compounds or trisaryl-1,3,5-triazine compounds wherein the aromatic substituents include phenyl, an ortho, meta, and/or para substituted phenyl ring, a naphthalene ring substituted at one or more positions, substituted or unsubstituted biphenyl, or tetralin ring substituted at one or more positions, wherein the substitution group is a lower alkyl such as methyl, ethyl, propyl, butyl, iso-butyl, /-butyl, pentyl, hexyl, septyl, octyl, nonyl, hydroxy, an ether group such as methoxy, ethoxy, propyloxy, octyloxy, nonoxy, or a halogen, such as fluoride, chloride, bromide, or iodide.
Other suitable products include chloro-bisaryl-I,3,5-triazine compounds, trisaryl-I,3,5-triazine compounds, or 2-(2-oxyaryl)-4,6-bisaryl-1,3,5-triazine compounds wherein the aromatic substituted compounds include o-xylene, m-xylene, p-xylene, o-cresol, m-cresol, p-cresol, mesitylene, trimethylbenzene, cumene, anisole, ethoxybenzene, benzene, toloune, ethylbenzene, biphenyl, tert-butylbenzene, propoxybenzene, butoxybenzene, o-methoxyphenol, m-methoxyphenol, p-methoxyphenol, o-ethoxyphenol, m-ethoxyphenol, p-ethoxyphenol, o-nonoxyphenol, m-nonoxyphenol, tetralin, 2-chloro-4,6-bis(2,4-dimcthylphenyi)-1,3,5-triazine; 2-(2,4-dihydroxyphenyl)-4,6-bis(2,4-dimcthylphcnyl)-1,3,5-triazine; 2-(4-alkoxy-2-hydroxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine;
2-chloro-4,6-bisphenyl-1,3,5-triazine; 2-(2,4-dihydroxyphenyl)-4,6-bisphenyl-1,3,5-triazine;
2-(4-alkoxy-2-hydroxyphenyl)-4,6-bisphenyl-1,3,5-triazine; 2-(2-hydroxy-4-octyloxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine; 2-(2-hydroxy-4-hexyloxyphenyl)-4,6-bis(2,4-dimethylphenyl)- 1,3,5 -triazine; and 2-(2-hydroxy-isooctyloxyphenyl)-4,6-bis(2,4-dimethylphenyl)- 1,3,5-triazine.
The term "step-wise" means a reaction sequence wherein a series of reactions are conducted, the first reaction producing a compound of Formula III and being carried out to about 50% to about 100% completion prior to addition of a compound of Formula IV to produce a compound of Formula I. Preferably the reaction is carried out to about 70% to about 100% completion prior to addition of compound of Formula IV, and more preferably to about 75% to about 100% completion.
The term "continuous" means a reaction sequence not defined as "step-wise."
The relative amounts of the reactants are as follows. The amount of a cyanuric halide should be in sufficient amounts to react with aromatic compounds of Formula II to produce either 2-halo-4,6-bisaryl-1,3,5-triazine or 2,4,6-trisaryl-1,3,5-triazine. The amount of aromatic compound of Formula II is important to ensure that a sufficient amount of monohalo-bisaryl-triazine is synthesized without excessive amounts of undesired side products such as 2,4-dihalo-6-aryl-1,3,5-triazine or trisaryl triazine.
Moreover, excess amounts of aromatic compounds can lead to undesired product distributions enriched in mono- and tris-aryl triazines, thus, making product separation and purification difficult and resource consuming.
The amount of aromatic compounds should be in sufficient amounts to synthesize 2-halo-4,6-bisaryl-1,3,5-triazine, 2,4,6-trisaryl-1,3,5-triazine, or convert 2-halo-4,6-bisaryl-1,3,5-triazine into 2,4,6-trisaryl-1,3,5-triazine. Preferably, there should be between about 1 to about 5 mol equivalents of aromatic compound of Formula II to cyanuric halide. More preferably, the amount ol'aromatic compound of Formula I V should be between about 0.5 to about 2.5 mol equivalents of aromatic compound of Formula IV to cyanuric halide. In some cases aromatic compounds of Formula 11 can he used both as a reactant and a solvent.
The amount of Lewis acid used in the reaction facilitator should be in sufficient amounts to transform 2,4,6-trihalo-1,3,5-triazinc to the preferred 2-halo-4,6-hisaryl-1,3,5-triazine or 2,4,6-trisaryl-1,3,5-triazine. The amount of Lewis acid should be between about 0.5 to about 500 mol equivalents. Preferably, the amount of Lewis acid should be between about I to about 10 mol equivalents to cyanuric halide.
I U The amount ol'reaction promoter used in the reaction facilitator should he in sufficient amounts to transform 2,4,6-trihalo-1,3,5-triazine, to the preferred 2-halo-4,6-bisaryl-1,3,5-triazine or convert 2-halo-4,6-bisaryl-1,3,5-triazine to the compound of Formula 1. Preferably, the amount of reaction promoter should be between about 0.01 to about 5 mol equivalents to cyanuric halide The Lewis acid and reaction promoter preferably combine to form a reaction facilitator complex that can be prepared in situ or pre-formed prior to addition to the reagents. The Lewis acid and/or reaction promoter or reaction facilitator can be combined with either a compound of Formula Ii or compound of Formula IV or both in any manner.
In situ reaction facilitator preparation comprises addition of at least one Lewis acid and at least one reaction promoter to a mixture of cyanuric halide, at least one aromatic compound of Formula II, and optionally solvent without regard to addition order. To prepare the reaction facilitator prior to addition to the reagents, i.e., the pre-formed method, Lewis acid and reaction promoter are combined and allowed to mix prior to addition, optionally in an inert solvent. Thereafter, the reaction facilitator is added to the reagents or vice versa, as desired and in any addition order. As used herein, one or more Lewis acids may be used, the first step and second step Lewis acid may be the same or different.
Additionally, one or more reaction promoters may be used, the first step and second step reaction promoter may be the same or different. In the "continuous" process, the use of additional Lewis acid and reaction promoter is optional.
If the reaction facilitator is prepared using the pre-formed method, preferred mixing time of the Lewis acid and reaction promoter, prior to addition to the reagents, is between about 1 minute to about 10 hours, more preferred is between about 10 minutes to about 5 hours. The preferred mixing temperature of the Lewis acid and reaction promoter combination, prior to addition to the reagents, is between about -50 C to about 100 C, more preferred is between about -10 C to about 50 C.
The reaction should run for sufficient time, at a sufficient temperature and pressure to synthesize the desired triazine compound. The preferred reaction time for the synthesis of compounds of Formula III, i.e., the first step, is between about 5 minutes and about 48 hours, more preferred between about 15 minutes and about 24 hours. The preferred reaction time for the synthesis of compounds of Formula I, i.e., the second step, is between about 10 minutes and about 24 hours, more preferably between about 30 minutes and about 12 hours.
The use of the reaction facilitator reduces the reaction time while improving the selectivity for mono-halo-his-aryl products in the first step. The preferred reaction temperature for the first step is between about -50 C and about 150 C, more preferred between about -30 C
and about 50 C. One advantage of using the reaction facilitator is the elimination of the need to heat the reaction mixture to increase the rate of reaction.
Additionally, due to the use of the reaction facilitator, the reaction temperature can be maintained at about ambient or lower temperatures, thus increasing product selectivity. The reaction pressure is not critical and can be about I atm or higher if desired. An inert gas such as nitrogen or argon is preferred. The preferred reaction temperature for the second step is between about 0 C
and about 120 C, more preferred between about 20 C and about 100 C.
The step-wise process comprises mixing cyanuric halide and the reaction facilitator with one or more of the desired aromatic compounds, preferably until the reaction is about 70% to about 100% completed. Thereafter, the product of Formula III is isolated. The second aromatic compound of Formula IV is added to the isolated product of Formula III
along with Lewis acid and optionally reaction promoter or reaction facilitator to synthesize the trisaryl-triazine. The step-wise sequence allows for the isolation, purification, and storage of Formula III product prior to subsequent reaction with compounds of Formula IV.
The continuous reaction comprises allowing a cyanuric halide to react with one or more aromatic compounds of Formula IT in the presence of the reaction facilitator preferably until the reaction is about 70% to about 100% complete. Thereafter, without isolating the product of Formula III, the second aromatic compound of Formula IV is allowed to react with the product of Formula III in the presence of optionally at least one second Lewis acid and optionally at least one second reaction promoter or reaction facilitator preferably until the reaction is about 70% to about 100% complete. The continuous reaction eliminates the need to isolate the intermediate product of Formula III or use of additional reagents such as solvents, and optionally Lewis acids, reaction promoters, or reaction facilitators. Moreover, the one-step process simplifies the synthetic reaction pathway such that no unnecessary handling or processing of the reaction mixture is required until the reaction is completed.
To synthesize compounds of Formula III using the pre-formed reaction facilitator method, the preferred addition time of the reaction facilitator to a reagent mixture is between about 5 minutes to about 5 hours, more preferred is between about 15 minutes to about 3 hours. The addition temperature of the reaction facilitator to a reagent mixture is between about -50 C to about 150 C, preferred addition temperature is between about -30 C to about 50 C, and more preferred addition temperature between about -20 C to about 30 C.
To synthesize compounds of Formula I using the pre-formed reaction facilitator, the preferred addition temperature of the reaction facilitator to a reagent mixture is between about 0 C to about 100 C, preferred addition temperature is between about 20 C
to about 80 C.
To synthesize compounds of Formula 1, the preferred addition time of the compound of Formula IV to the reaction mixture is between about 5 minutes to about 10 hours, more preferred addition time is between about 10 minutes to about 5 hours, and most preferred addition link is between about 15 minutes to about 2 hours. The addition temperature of the compound of Formula IV to the reaction mixture is between about 0 C to about 150 C, preferred addition temperature is between about 20 C to about 100 C.
The reaction facilitator should be present in amounts sufficient to react with the number of halogens being substituted on the triazine compound. A range of between about 1 to about 10 mot equivalents of Lewis acid and a range of between about 0.01 to about 5 mol equivalents of reaction promoter can be used. The preferred Lewis acid is aluminum halide, most preferably aluminum chloride. A preferred amount of Lewis acid is between about 2 to about 4 mol equivalents to halo-triazine. A preferred amount of reaction promoter is between about 0.05 to about 2 mot equivalents to triazine or triazine derived compounds.
The invention provides several advantages over prior art process such as higher yields, greater selectivity of reaction products, higher reaction rates, and/or applicability of reaction conditions to various aromatic compounds. The present invention consistently provided yields in the range of about 70 to about 98%, based on cyanuric halide conversion, as determined by HPLC analysis. Additionally, the ratio of desired 2-halo-4,6-bisaryl-1,3,5-triazine to trisaryl-1,3,5-triazine consistently averaged about 70:30 or more. The reaction facilitator significantly increased reaction rates in comparison to state of the art with Lewis acids alone. Moreover, the reaction conditions provided high yield and selectivity for a variety of aromatic compounds regardless of the aromatic substituents.
The triazine compounds synthesized using the present process can be applied to a variety of applications such as those described in U.S. Patent No. 5,543,518 to Stevenson et al. Col. 10-19.

The 2-chloro-4,6-bisaryl- 1,3,5-triazines are not only important intermediates for the preparation of trisaryl triazine UV absorbers, but they are also valuable intermediates for a variety of other commercially important products, such as vat dyestuffs (GB
884,802), photographic material (JP 09152701 A2), optical materials (JP 06065217 A2), and polymers (US 706424; DE 2053414, DE 1246238). These compounds are also of interest for medicinal applications (e.g., see: R.L.N. Harris, Aust. J. Chem., 1981, 34, 623-634; G.S.
Trivedi, A.J. Cowper, R.R. Astik, and K.A. Thakcr, J. hest. Cheer., 1981, 53(3), 135-138 and 141-144).
EXAMPLES
Certain embodiments and features of the invention are illustrated, and not limited, by the following working examples.
The reaction progress can be monitored by HPLC or TLC. Further product It) characteri=raticm may be done by 1,C'MS, MS, NMR, UV, direct comparison with authentic examples, or analytical techniques which are well known in the art. A typical HPLC
analysis of the samples is carried out as follows. The reaction mixture may, in some cases be a two-phase system, with a lower, viscous liquid layer which may contain most of the reaction products (as AiC13 complexes), and a supernatant, which may contain very little material. This supernatant can be often enriched in unreacted cyanuric chloride. In case of a two-phase system, it is important that both phases are sampled together in a representative fashion. For example, the mixture can be stirred rapidly and a sample taken from the middle of the mixture using a polyethylene pipette with the tip cut off. When pipetting the sample into a vial for work-up, it is important that the contents of the pipette be completely discharged. Since the two phases will separate into upper and lower layers, partial discharge may result in a sample enriched in the lower layer.
The reaction sample is discharged into a 4-dram vial containing either chilled 5%
1-IC1, or a mixture of 56/o HCI and ice. The precipitate can be extracted with ethyl acetate and the water layer can be pipetted off. The ethyl acetate layer is then washed with water.
Finally, an approximately 10% solution of the ethyl acetate layer in acetonitrile is prepared for HPLC analysis.
Certain embodiments and features of the invention are illustrated, and not limited, by the following working examples.

Example 1: Synthesis of 2-chloro-4,6-bis(2,4-dimeth ly phenyl)-I.3.5-triazine without a Reaction Promoter Cyanuric chloride (1.84 g) was allowed to react with 1.9 eq of m-xylene and 2.5 eq (3.35 g) of AICI3 in 25 mL of chlorobenzene at 5 C for 0.5 h and then at room temperature for 3 h. Analysis by HPLC, after 2.5 h, showed that less than 8% of cyanuric chloride had reacted to form only 2,4-diehloro-6-(2,4-dimethylphenyl)-1,3,5-triazine, no 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine or 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine were present. The reaction was allowed to continue at room temperature. After 24 hours, HPLC

analysis showed about 51 % cyanuric chloride conversion and formation of 2,4-dichloro-6-(2,4-dimethylphenyl)-1,3,5-triazine and 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine in the ratio of 95:5, respectively. No 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine was detected.
Example 2: Synthesis of 2-chloro-4.6-bis(2,4-dimethylphenyl)-1.3,5-triazine without a Reaction Promoter Cyanuric chloride (1.84 g) was allowed to react with 2.05 eq of m-xylene and 2.5 eq (3.35 g) of AIC13 in chlorobenzene at 5 C for 2 h and then at 15 C for 5 h.
Analysis by HPLC showed about 5% conversion of cyanuric chloride to 2,4-bischloro-6-(2,4-dimethylphenyl)-1,3,5-triazine and no 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine or 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine. The reaction was allowed to continue at room temperature. After 22 hours, HPLC analysis showed about 55% cyanuric chloride conversion and formation of 2,4-dichloro-6-(2,4-dimethylphenyl)-1,3,5-triazine and 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine in the ratio of 96:4, respectively. The reaction was allowed to continue. After 72 hours at room temperature, a final HPLC
analysis showed 99% cyanuric chloride conversion, formation of 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine in the ratio of 78:22, and no 2,4-bischloro-6-(2,4-dimethylphenyl)-1,3,5-triazine was detected.
Example 3: Synthesis of 2-chloro-4.6-bis(2.4-dimethylphenyl)-1.3.5-triazine using 0.1 ego resorcinol and 2.5 eq AIC13 Cyanuric chloride was allowed to react with 2.05 eq of m-xylene in chlorobenzene, in the presence of 2.5 eq of AICI3 and-0.1 eq of resorcinol. The reaction was carried out at about 5 C for 2 h and then at room temperature for 5 h. Analysis by HPLC
showed about 10% conversion of cyanuric chloride to 2,4-dichloro-6-(2,4-dimethylphenyl)-1,3,5-triazine.
After about 40 h at room temperature, HPLC analysis showed 99% cyanuric chloride conversion to 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine present in a 78:22 ratio respectively, no 2,4-dichloro-6-(2,4-dimethylphenyl)-1,3,5-triazine was detected.

Example 4: Synthesis of 2-chloro-4,6-bis(2.4-dimethylphenyI -l.3.5-triazine using 0.2 eq resorcinol and 2.5 eg AICI, and conversion to 2-(2.4-dihydroxyphenyl)-4.6-bis(2,4-dimethylphenyl)-1.3.5-triazine Cyanuric chloride (1.84 g) was allowed to react with 1.9 eq of m-xylene, in the presence of 2.5 eq of AIC13 (3.35 g) and 0.2 eq of resorcinol, in 25 mL
chlorobenzene at about 5'C for 0.5 h and then at room temperature for 3 h. Analysis by HPLC
showed about 14% conversion of cyanuric chloride to 2,4-dichloro-6-(2,4-dimethylphenyl)-1,3,5-triazine.
After about 13 h at room temperature, HPLC analysis showed 99% cyanuric chloride conversion to 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine, in a ratio of 82:18, respectively. No 2,4-dichloro-6-(2,4-dimethylphenyl)-1,3,5-triazine or resorcinol-containing products were detected.
To the reaction mixture was added an additional 0.9 eq resorcinol and the reaction mixture was heated at 80 C for 1 h. HPLC analysis indicated the formation of 2-(2,4-dihydroxyphenyl)-4,6-bis(2,4-dimethyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimcthylphcnyl)-1,3,5-triazine in a 79:21 ratio, with about 1% unreacted 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine. The process to make 2-(2,4-dihydroxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine was complete within 15 hours.
The heating was discontinued and the reaction mixture allowed to cool to room temperature. 2% ice-cold aqueous HCI was added with stirring to break. the aluminum complexes. A yellow precipitate was formed. The reaction mixture was filtered, washed with water, and dried to give 3.65 g of crude 2-(2,4-dihydroxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine.

Example 5: Synthesis of 2-(2.4-dihvdroxyphenyl)-4.6-bis(2.4-dimethylphenyl)-1.3-5-triazine using I eq resorcinol and 2.5 eq AJC13 Cyanuric chloride (1.84 g) was allowed to react with 2.05 eq of m-xylene, in the presence of 2.5 eq of AIC13 (3.35 g) and I eq of resorcinol, in 25 mL
chlorobenzene at about 5 C for 2 h and then at 15 C for 4 h. Analysis by HPLC showed 70% conversion of cyanuric chloride, mainly to 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine in a 59:41 ratio. Two minor components were also present, 2,4-dichloro-6-(2,4-dimethylphenyl)-1,3,5-triazine (5%) and 2-(2,4-dihydroxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine (3%). The reaction mixture was allowed to warm to room temperature, and after about 16 h at room temperature, HPLC analysis showed 92% cyanuric chloride conversion, mainly to 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine (66%), 2-(2,4-dihydroxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine (25%), 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine (4.5%), and 2,4-dichloro-6-(2,4-dimethylphenyl)-1,3,5-triazine and 2-chloro-4-(2,4-dihydroxyphenyl)-6-(2,4-dimethylphenyl)-1,3,5-triazine (3%).

Example 6: Synthesis of 2-(2.4-dihydroxyphenyl)-4.6-bis(2.4-dimethylpheny1)-1.3.5-triazine using 0.5 eq resorcinol and 2.5 eq AIC13 Cyanuric chloride was allowed to react with 2 eq of m-xylene, in the presence of 2.5 eq ol'AlCI3 and 0.5 eq of'resorcinol, in chlorobenzene at room temperature for about 22 h.
Analysis of the reaction mixture by HPLC showed about 94% cyanuric chloride conversion, mainly to 2,4,6-tiis(2,4-dimethylphenyl)-1,3,5-triazine, 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2-(2,4-dihydroxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine in a ratio of 69:27:4.

Example 7: Synthesis of chloro-4,6-bis(2.4-dimethylphenyl)-1,3,5-triazine using 3 eq AICI, A. Absence of a Reaction Promoter Cyanuric chloride was allowed to react with 2.05 eq of m-xylene, in the presence of 3 eq of A1C13, in chlorobenzene at 5 C for 0.5 h and then at room temperature for 3 h. An HPLC analysis showed about 3% cyanuric chloride conversion to 2,4-dichloro-6-(2,4-dimethylphenyl)-1,3,5-triazine; no 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine or 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine was detected. After 24 h at room temperature, HPLC analysis showed about 33% conversion to cyanuric chloride to 2,4-dichloro-(2,4-dimethylphenyl)-1,3,5-triazine and 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, formed in a 96:4 ratio respectively.
B. Effect of 0.2 eq of Resorcinol Thereafter, 0.2 eq of resorcinol was added to the above reaction mixture, and the reaction mixture was further stirred at room temperature for 16 h. HPLC
analysis showed 97% cyanuric chloride conversion to 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine, formed in an 80:20 ratio respectively; no 2,4-dichloro-6-(2,4-dimethylphenyl)-1,3,5-triazine was detected.

Example 8: Synthesis of 2-(2,4-dihydroxyphenyl)-4.6-bis(2.4-dimethylphenyl -1.3.5-triazine using 0.2 eq resorcinol and 3 eq AICI3 Cyanuric chloride was allowed to react with 1.9 eq of m-xylene, in the presence of 3 eq of AIC13 and 0.2 eq of resorcinol, in chlorobenzene at 5 C for 0.5 h and then at room temperature for 3 h. An HPLC analysis after 3 h at room temperature showed about 20%
cyanuric chloride conversion to 2-chloro-4,6-bis(2,4-dimethylphenyl)- 1,3,5-triazine. The reaction mixture was stirred overnight at room temperature. After 18 h, an HPLC analysis showed 97% cyanuric chloride conversion to 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine, formed in an 81:19 ratio respectively; no 2,4-dichloro-6-(2,4-dimethylphenyl)-1,3,5-triazine was detected.
To the reaction mixture was then added 0.9 eq of resorcinol, and the mixture was heated in an oil bath to 60 C (oil bath temperature). After 5 h, analysis by HPLC showed the formation of 2-(2,4-dihydroxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine (73%) and 2,4,6-tris(2,4-dimcthylphcnyl)-1,3,5-triazine (21 %), with 3% of unreactcd 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine.

Example 9: Synthesis of 2-(2,4-dih droxvpheny )-4.6-bis 2.4-dimethylphenyl)-1,3,5-triazine using 0.2 eq resorcinol and 2.75 eq AJCI3 Cyanuric chloride was allowed to react with 2.05 eq of m-xylene, in the presence of 2.75 eq of AIC13, and 0.2 eq of resorcinol in chlorobenzene at 5 C for 0.5 h and then allowed to warm to room temperature. After a total of 18 h at room temperature, analysis by HPLC showed 98% cyanuric chloride conversion to 2-chloro-4,6-bis(2,4-(limcthylhhcnyl)-1,3.5-triazinc and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine in an 81:19 ratio respectively; no 2,4-dichloro-6-(2,4-dimethylphenyl)-1,3,5-triazine was detected. The reaction mixture was then allowed to react with 0.9 eq of resorcinol at 60 C
for 5 h. HPLC
analysis showed the formation of 2-(2,4-dihydroxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine in a ratio of 77:21 with 1%
unreactcd 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine.

Example 10: Synthesis of 2-(2.4-dihvdroxyphenyl -4.6-bis 2.4-dimethylphenyl)-1.3.5-triazine using 0.2 eq resorcinol and 1.8 eq AIC1, Cyanuric chloride was allowed to react with 2.05 eq of m-xylene, in the presence of 1.8 eq of AIC13, and 0.2 eq of resorcinol in chlorobenzene at 5 C for 0.5 h and then allowed to warm to room temperature. After 18 h at room temperature, HPLC analysis showed 84%
cyanuric chloride conversion to 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine, formed in a 46:54 ratio.
2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine was the major product, and about 3%
2,4-dichloro-6-(2,4-dimethylphenyl)-1,3,5-triazine was also present.
The reaction was allowed to continue at room temperature. After 4 days, HPLC
analysis showed 93% cyanuric chloride conversion, with the following product distribution:
75% 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine; 17% 2-(2,4-dihydroxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine; 4% 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazinc; and other resorcinol-containing components as minor products.

Example 11: Synthesis of 2-(2.4-dihydroxvphenyl)-4,6-bis(2.4-dimethylphenyl)-1.3 5-triazine using 0.144 eq resorcinol and 1.8 eqA1C13 Cyanuric chloride was allowed to react with 2.05 eq of m-xylene, in the presence of 1.8 eq of AIC13 and 0.144 eq of resorcinol, in chlorobenzene at 5 C for 0.5 h and then at room temperature for 3 h. The ratio of A1C13 to resorcinol was thus 12.5:1. An HPLC
analysis after 65 hours at room temperature showed 91% cyanuric chloride conversion, with the following product distribution: 79% 2,4,6-tris(2,4-dimethylphenyl)- 1,3,5-triazine; 10%
2-(2,4-dihydroxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine; 8% 2-chloro-4,6-bis(2,4-dimct)iylphenyl)-1,3,5-triazine; and other resorcinol-containing compounds as minor products.
Example 12: Synthesis of 2-(2.4-dihydroxyphenyl)-4.6-bis(2 4-dimethylphenyl)-1 triazine using 0.15 eq resorcinol and 2.5 eqAICIin a tetrachloroethane solvent Cyanuric chloride was allowed to react with 1.9 eq of m-xylene, in the presence of 0.15 eq of resorcinol and 2.5 eq of AIC13, in 1,1,2,2-tetrachloroethane at room temperature for about 26 h. HPLC analysis showed about 95% cyanuric chloride conversion to 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine, formed in an 87:13 ratio. The reaction mixture was allowed to react with an additional 0.9 eq of resorcinol for 4 h at 90 C. HPLC analysis showed 98.3% 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine conversion, and the ratio of 2-(2,4-dihydroxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine to 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine was 84:16.

Example 13: Synthesis of 2-(2.4-dihydroxyphenyl)-4.6-bis(2.4-dimethvlphenyl)-1 triazine using 0.2 eq resorcinol and 3 eq AMC13 in a tetrachloroethane solvent Cyanuric chloride was allowed to react with 2.05 eq of m-xylene, in the presence of 3 eq of AIC13 and 0.2 of resorcinol, in chlorobenzene at 5 C for 0.5 h and then at room temperature for 3 h. The first step (conversion to 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine) was completed in less than 16 h, with more than 98% cyanuric chloride conversion as determined by HPLC analysis. 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine were formed in an 86:14 ratio; no other products were detected. The reaction mixture was allowed to react with additional resorcinol at 110 C for 1.5 h. HPLC analysis showed a product mixture of 82%
2-(2,4-dihydroxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 14%
2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine, and 2% 2,4,6-tris(2,4-dihydroxyphenyl)-1,3,5-triazine, with only 1.5% unreacted 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine.
Example 14: Synthesis of 2-(2.4-dih droxyphenyl)-4 6-bis 2 4-dimethylphenyl)-1 triazine using methyl alcohol with 3 eq AICI3 A two-neck round bottom flask was equipped with a reflux condenser, an argon inlet, a magnetic stirring bar and a glass stopper. Cyanuric chloride (3.7 g) and 50 mL of chlorobenzene were added. Next, 3 eq of A1C13 (8 g) at ice-bath temperature was added, followed by 0.4 mL of methyl alcohol. After 5 min, 1.9 eq of m-xylene was added. The cooling was removed, and the reaction mixture was stirred at room temperature.
The reaction was complete within 20 h at room temperature, as indicated by 1-IPLC
which showed the absence oC m-xylene and 97% conversion of cyanuric chloride to 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine in an 83:17 ratio.
To the reaction mixture was added 1.1 eq of resorcinol, and the reaction mixture was heated at 85 (' for 4.5 h. I II'I,C analysis showed the formation ol'78%
2-(2,4-dihydroxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 19%
2,4,6-tris(2,4-dimethylphenyl)- 1,3,5-triazine, 1.6% unreacted 2-chloro-4,6-I0 bis(2,4-dimethylphenyl)-1,3,5-triazine, and 1.4% 2,4,6-tris(2,4-dihy(iroxypphenyl)-1,3,5-triazine. The reaction was allowed to cool to room temperature, and 2% ice-cold aqueous HCI was added. A yellow precipitate was formed, separated by filtration, washed with water, and dried to yield 7.7 g of crude 2-(2,4-dihydroxyphenyl)-4,6-bis(2,4-dimethyl phenyl)-1,3,5-triazine.
Example 15: Synthesis of 2-chloro-4.6-bis(2,4-dimethylphenyl)-1 3 5-triazine using 0.2 eq resorcinol and 2.5 eq AIC1 at 45 C
Cyanuric chloride was allowed to react with 1.9 eq m-xylene, in the presence of 2.5 eq AIC13 and 0.2 eq resorcinol, in chlorobenzene at 45 C. 1-IPLC analysis of the reaction after 4 h showed 95% conversion of cyanuric chloride to 2-chloro-4,&
bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine, which were formed in a 67:33 ratio respectively.

Example 16: Synthesis of 2-(2.4-dih droxvphenyl)-4 6-bis(2 4-dimethylphenyl)-1 triazine using 0.2 eq resorcinol and 2.5 eq AIC13 in a dichlorobenzene solvent Cyanuric chloride was allowed to react with 2 eq m-xylene, in the presence of 2.5 eq AIC13 and 0.2 eq of resorcinol, in ortho-dichlorobenzene at 24 C. After about 21 h, an exotherm was observed. A sample was immediately taken. HPLC analysis of the sample showed 94% conversion of cyanuric chloride to 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine, in an 81:19 ratio.
After the exotherm had subsided, the cyanuric chloride conversion had increased to 97.5%, and the 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine to 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine ratio was 79:21.
To this mixture was added 0.9 eq additional resorcinol, and the mixture was heated to 80 C for 1 h. HPLC analysis of the reaction showed 2-(2, 4-dihydroxyphenyl)-4,6-bis(2,4-dimethylphenyl)- 1,3,5-triazine, with a 2-(2,4-dihydroxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine to 2,4,6-tris(xylyl)-1,3,5-triazine ratio of 77:23, and about 2'%, tiureacted hisaryl-chloro-triazine.

Example 17: Synthesis of 2-chloro-4,6-his(2,4-dimethylphenyl)-1 3 5-triazinc using 0.2 ecj resorcinol and 2.5 eq AICI, in a dichlorobenzene solvent A. No Cooling during Exotherm Cyanuric chloride was allowed to react with 2 eel m-xylenc, in the presence olf2.5 eq AIC13 and 0.2 eq of resorcinol, in ortho-dichlorobenzene at 40 C. A 4 C
exotherm was observed after 4-5 h. HPLC analysis of the reaction at this point showed 96%
conversion of cyanuric chloride to 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine, which were formed in a 78:22 ratio.
B. With Cooling to 10 C after 4 h The reaction of part (A) was repeated. The exotherm began after 4 h. A sample was immediately taken, and the reaction was cooled to 10 C. HPLC analysis of the sample showed 96% conversion of cyanuric chloride to 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine, which were formed in a 78:22 ratio. There was also some unreacted 2,4-dichloro-6-(2,4-dimethylphenyl)-1,3,5-triazine at this point. After I h at 10 C, the cyanuric chloride conversion was 97%, no 2,4-dichloro-6-(2,4-dimethylphenyl)-1,3,5-triazine was detected, and the ratio of 2,4-dichloro-6-(2,4-dimethylphenyl)-1,3,5-triazine to 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine was 83:17.

Example 18: Synthesis of 2-(2.4-dihydroxyphenyl)-4.6-bis(2.4-dimethylphenyl)-1 triazine using 0.2 eq resorcinol and 3 eq AICI with 6.5% concentrated HCI
To a stirring mixture of 1 eq of cyanuric chloride, 3 eq of A1C13 and 0.2 eq of resorcinol in chlorobenzene, was added 6.5% (based on the weight of cyanuric chloride) of concentrated HCl at ice-bath temperature. An immediate reaction with AIC13 was observed, leading to its almost complete solvation of AIC13. 1.9 eq of m-xylene was then added.
Within 5 min the color changed from light yellow to dark yellow to orange and finally dark red. The cooling bath was removed and the reaction mixture was analyzed at this stage by HPLC. The HPLC analysis showed 99% cyanuric chloride conversion to 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine, which were formed in a 92:8 ratio. Thereafter, the reaction mixture was allowed to react with 1.1 eq of resorcinol and subsequently, heated between 85 -90 C for 1 h.
HPLC
analysis of the reaction mixture showed 85.3% 2-(2,4-dihydroxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 12.8% 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine, and 1.7% unreacted 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine.

Example 19: Synthesis of 2-(2.4-dihvdroxvphenvl) 4.6-bis(2 4-dimethylpheny1) 1 3,5-triazine using 3 eq AIC1.1 with 6.5% concentrated HCI
To a stirring mixture of I eq of cyanuric chloride, 3 eq of AIC13 in chlorobenzene, was added 6.5% (based on the weight of cyanuric chloride) of concentrated HCl at ice-bath temperature. Within 1.5 h, the 1-1PLC analysis showed almost complete conversion of cyanuric chloride to 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-(2,4-dimethylphenyl)-1,3,5-triazine, which were formed in a ratio of91:9.
7'hcrcaller, the reaction mixture was allowed to react with 1.1 eq of resorcinol and subsequently heated at 85 C for I h. HPLC analysis showed the formation of 83.3% 2-(2,4-dihydroxyphenyl)-4,6-bis(2,4-dimcthylphenyl)-1,3,5-triazine, 14.9% 2,4,6-tris(2,4-(Iimethylphenyl)-1,3,5-triazine, and 1.7% unreacted 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine. No trisresorcinol-triazine or bisresorcinol-triazine products were detected.

Example 20: Synthesis of 2-(2,4-dihyddroxyphenyl)-4.6-bis(2 4-dimethylphenyl -triazine using 3 eq AICI, with 13% concentrated HCI
To a stirring mixture of 1 eq of cyanuric chloride, 3 eq of A1C13, and 1.9 eq of m-xylene in chlorobenzene, was added 13% (based on the weight of cyanuric chloride) of concentrated HCI at ice-bath temperature. Within 30 min at room temperature, 97% of the cyanuric chloride had reacted, to produce 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine in a ratio of 96:4;
no side products were detected. Further stirring gave 99.5% cyanuric chloride conversion, with the ratio of 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine to 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triar_ine unchanged and no other products were detected. "!'hereafter, the reaction mixture was allowed to react with 1.1 eq of resorcinol at 85 C for 1.5 h. HPLC
analysis of the reaction mixture showed the formation of 92.7% 2-(2,4-dihydroxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 5% 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine, and 2.3% unreacted 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine.
The product was isolated by treating the reaction mixture with cold 2% aqueous HCI. Precipitate was collected by filtration, washed with water, and dried to give 92% yield of crude 2-(2,4-dihydroxyphenyl)-4,6-bis(2,4-di methylphenyl)-1,3,5-triazine.
The actual yield should be even higher than 92%, since some of the product was lost during the sampling for a number of HPLC analyses done during the course of the reaction.
HPLC
analysis of the isolated crude 2-(2,4-dihydroxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine showed 92.4% 2-(2,4-dihydroxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 5% 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine, 2.35% unreacted 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, and 0.25% 2,4,6-tris(2,4-dihydroxyphenyl)-1,3,5-triazine.

Example 21: Synthesis of 2-chloro-4.6-bis(2.4-dimethy1pheny)-1.3.5-triazine using 3 eq AICI3 with 13% concentrated HCl To a stirring mixture of I eq of cyanuric chloride, 3 eq of A1C13 in chlorobenzene, was added 13% (based on the weight of cyanuric chloride) of concentrated HCl at ice-bath temperature. After addition of 1.9 eq of m-xylene and the reaction of cyanuric chloride with m-xylene was complete, as indicated by the absence of m-xylene by HPLC
analysis, the reaction mixture was quenched with ice-cold 2% aqueous HCl at about 5 C. The reaction mixture was then extracted with methylene chloride. The organic layer was washed with water, dried over anhydrous sodium sulfate, and the solvent removed under reduced pressure to give a white solid (quantitative yield based on m-xylene, and 95%
yield based on cyanuric chloride). HPLC analysis indicated the isolated white solid to consist of > 96%
pure 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine.

Example 22: Synthesis of 2-chloro-4.6-bis(2.4-dimethylphenyl)-1.3.5-triazine using 2.5 eq AIC13 with 13% concentrated HCI
To a stirring mixture of 1 eq of cyanuric chloride, 2.5 eq of A1C13 in chlorobenzene, was added 13% (based on the weight of cyanuric chloride) of concentrated HCl at ice-bath temperature. HPLC analysis after I h at room temperature showed 89% cyanuric chloride conversion to 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine, in a ratio of 82:18. The reaction mixture was left stirring at room temperature overnight after which the complete conversion of cyanuric chloride was detected. The next sample analyzed by HPLC after 22 h at room temperature showed 94%
cyanuric chloride conversion, and the ratio of 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine to 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine to be 43:57.
Example 23: Synthesis of 2-(2.4-dihydroxyphenyl -4,6-bis(2 4-dimethylphenyl)-I

triazine using 2.5 eq AIC13_ with 6.5% concentrated HCl To a stirring mixture of 1 eq of cyanuric chloride, 2.5 eq of AICI3 in chlorobenzene, was added 6.5% (based on the weight of cyanuric chloride) of concentrated HCl at ice-bath temperature. After 22 h at room temperature, 98% of the cyanuric chloride had reacted to give 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine, which were present in a ratio of 90:10. The reaction mixture was allowed to react with 1.1 eq of resorcinol and subsequently heated to 85 C for 1.5 h. HPLC analysis of the reaction mixture showed 85.4%
2-(2,4-dihydroxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 11.4%
2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine, 2.6% unreacted 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, and 0.6% 2,4,6-tris(2,4-dihydroxyphenyl)-1,3,5-triazine.
Example 24: Synthesis of 2-chloro-4.6-bistetralin-1.3.5-triazine To a stirring mixture of 1 eq of cyanuric chloride (5 g., 0.027 mol) in chlorobenzene, maintained at ice bath temperature under nitrogen, was added 3 eq of A1C13 (10.87 g., 0.081 mol) over 5-10 min, followed by the addition of conc. HCl (0.54 mL, 0.0065 mol) over 5-10 min, taking care that the reaction temperature did not exceed 5 C. The reaction slurry was stirred at 0-5 C for another 10 min. The reaction was cooled to -10 C and tetralin (7.01 mL, 0.0516 mol) was added at -10 C over 2h. At the completion of the tetralin addition, the reaction mixture was stirred at -10 C for 2h. The reaction was warmed to 0 C and stirred for I h. HPLC analysis of the reaction mixture showed 98.5% conversion of cyanuric chloride to 2-chloro-4,6-bistetralin-1,3,5-triazine and 2,4,6-tristetralin-1,3,5-triazine in a 92:8 ratio. The slurry was warmed to 40 C and resorcinol (3.29 g, 0.0298 mol) was added and the reaction mixture was stirred at 80 C for 2 h.. HPLC analysis showed 100% conversion of 2-chloro-4,6-bistetralin-1,3,5-triazine to 2-(2,4-dihydroxyphenyl)-4,6-bistetralin-1,3,5-triazine.

Comparative Example 24: Synthesis of 2-chloro-4.6-bistetralin-1 3 5-triazine To a stirring mixture of 1 eq of cyanuric chloride (5 g., 0.027 mol) in chlorobenzene (50 mL), maintained at ice bath temperature under nitrogen, was added 3 eq of A1CI3 (10.87 g., 0.081 mol) over 5-10 min. The reaction slurry was stirred at 0-5 C for another 10 min.
The reaction was cooled to -10 C and tetralin (7.01 mL, 0.0516 mol) was added at -10 C
over 2 h. At the completion of the tetralin addition, the reaction mixture was stirred at -10 C for 2 h. The reaction was warmed to 0 C and stirred for I h. HPLC
analysis of the reaction mixture showed no reaction of cyanuric chloride, and no formation of 2-chloro-4,6-bistetralin- 1,3,5-triazine.

Example 25: Synthesis of 2-chloro-4.6-bis(2 4-dimethvlpheny )-1 3 5-triazine using 3q AICI, with concentrated sulfuric acid To a stirring mixture of I eq of cyanuric chloride, 3 eq of AlC13 in chlorobenzene, was added 0.24 eq of concentrated H2SO4 at ice-bath temperature. After 5 min of stirring 2 eq of m-xylene was added. After another 5 min, the cooling bath was removed and the reaction mixture was stirred at room temperature. HPLC analysis after 2 h at room temperature showed 100% of the cyanuric chloride had reacted to give 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine, which were present in a ratio of 86:14.

Example 26: Synthesis of2-(2,4-dihydroxyphenyl)-4,6-bis(2.4-dimethylphenyl)-1,3,5-triazine using 3.5 eq AlC13 with 10% aqueous sulfuric acid To a stirring mixture of l eq of cyanuric chloride, 3.5 eq of AIC13 in chlorobenzene, was added 0.036 eq of sulfuric acid as a 10% aq. solution at ice-bath temperature. After 10 min of stirring 1.9 eq of m-xylene was added. After 5 min at ice bath temperature the reaction mixture was allowed to warm to 10 C. After 1 h 20 min. HPLC analysis showed 89% of the cyanuric chloride had reacted to give 2-chloro-4,6-bis(2,4-dimcthylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)- 1,3,5-triazine, which were present in a ratio of 89:11. HPLC analysis, after 3h at 9-11 C, showed 94% of the cyanuric chloride had reacted to give 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine, which were present in a ratio of 95:5. HPLC
analysis, after 5 h at 9-11 C and 17 h at room temperature, showed 98.5% of the cyanuric chloride had reacted to give 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine, which were present in a ratio of 97:3.
The reaction mixture was allowed to react with 1.1 eq of resorcinol and subsequently heated to 85 C for 3 h. HPLC analysis of the reaction mixture showed 92.7%
2-(2,4-dihydroxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 4%
2,4,6-tris(2,4-dimethylphenyI)-1,3,5-triazine, 2.4% unreacted 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, and 0.9% 2,4,6-(2,4-dihydroxyphenyl)-1,3,5-triazine.

Example 27: Synthesis of 2-chloro-4 6-bis(2 4-dimethylphenyl)-1 3 5-triazine using 3 eq AIC13 with benzoic acid To a stirring mixture of I eq of cyanuric chloride, 3 eq of AIC13 in chlorobenzene, was added 0.24 eq of benzoic acid as a 4% solution in chlorobenzene at ice-bath temperature. m-Xylene (1.95 eq) was then added. After 5 min at ice bath temperature, the reaction was allowed to warm to room temperature. HPLC analysis after 22-h at room temperature, showed 99.5% of the cyanuric chloride had reacted to give 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine, which were present in a ratio of 82:18.

Example 28: Synthesis of 2-(2.4-dih droxvphenyl -4) 6-bis(2 4-dimethylphenyl)-triazine using 3 eq AICI3 and 6.5% concentrated HCI
To a stirring mixture of 1 eq of cyanuric chloride, 3 eq of AIC13 in chlorobenzene, was added 0.24 eq of concentrated HC1 at ice-bath temperature. After 45 min, 0.95 eq of m-xylene and 0.95 eq of toluene were added. After 45 min at ice bath temperature, the reaction was stirred at 9 C for I h and then at room temperature for 2 h. HPLC
analysis showed 2-chloro-4,6-bis(2;4-dimethylphenyl)-1,3,5-triazine as the major product with lesser amounts of 2-chloro-4,6-bis(4-methylphenyl)-1,3,5-triazine, and 2-chloro-4-(4-methyl phenyl)-6-(2,4-dimethylphenyI)-1,3,5-triazine.
The reaction mixture was allowed to react with 1.1 eq of resorcinol and subsequently heated to 85 C for 2 Ih. HPLC analysis of the reaction mixture showed 2-(2,4-dihydroxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine as the major product with lesser amounts of 2-(2,4-dihydroxyphenyl)-4,6-bis(4-methylphenyl)-1,3,5-triazine, and 2-(2,4-dihydroxyphenyl)-4-(4-methylphenyl)-6-(2,4-dimethylphenyl)-1,3,5-triazine.

Example 29: Synthesis of 2-(2.4-dimetlioxyphenyl -4.6-bis(2 4-dimethylphenyl -triazine using 3 eq AICI3 with concentrated HCI
To a stirring mixture of I eq of cyanuric chloride, 3 eq of AICI, in chlorobenzene, was added 0.24 eq of concentrated HCI at ice-bath temperature. After 10 min, 1.9 eq of m-xylene was added. The reaction was stirred at ice bath temperature for 2 h and then at room temperature for 5 h. HPLC analysis showed formation of 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine as the major product and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine in a 91:9 ratio. The reaction mixture was allowed to react with 1.1 eq of 1,3-dimethoxybenzene. The mixture was heated to 59-61 C
and stirred for 2 h, then heated 85 C and stirred for 5 h. HPLC analysis of the reaction mixture showed 76% 2-(2,4-dimethoxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 24% 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine (HPLC area percent at 290 nm) as the only products.

Example 30: Synthesis of 2-chloro-4.6-bis(2 4-dimethylphenyl)-l 3 5-triazine using 2.5 eq AICI3 and 0.12 eq anhydrous HCI
To a mixture of cyanuric chloride in chlorobenzene cooled to 5 C was added 2.5 eq of AIC13, 0.12 eq of anhydrous HCI (as a 0.28 N solution in chlorobenzene), and 1.9 eq of m-xylene. This mixture was warmed to 23 C with stirring, and the progress of the reaction was monitored by HPLC. The data are given in Table I below.

Table I: Reaction Profile for Anhydrous HCI

Time (Ii) C'yanuric Mono-xylyl-llis- Isis-xylyl- 'I'ris-xylyl-chloride chloro-Triazine monochioro- Triazine Conversion (%) triazine The cyanuric chloride conversion is based on area percent at 2 10 nm. The amounts of the other components are based on area percent at 290 nm.

Example 31: Synthesis of 2-chloro-4,6-bis(2.4-dimethylphenyl)-1.3.5-triazine using 3 eq AICI1 and 0.2 eq anhydrous HCI
To a mixture of cyanuric chloride in chlorobenzene cooled to 5 C was added 3 eq of AIC13, 0.2 eq of anhydrous HCI (as a 0.156 N solution in chlorobenzene), and 1.9 eq of m-xylene. This mixture was then warmed to 23 C with stirring, and the progress of the reaction was monitored by HPLC. The data are given in Table II below.

Table II: Reaction Profile for Anhydrous HCI (0.20 eq) Time (h) Cyanuric Monoxylyl- Bis-xylyl- Tris-xylyl- Bisxylyl-Chloride bischloro- monochioro- triazine monochioro:
Conversion (%) triazine triazine Tris-xylyl*

2.5 6 100 5.5 19 97 3 23 59 89 10 1 94:6 48 88 0.5 65.5 34 78:22 * corrected ratio.

Example 32: Synthesis of 2-(2.4-dihydroxyphenyl)-4 6-bis(2 4-dimethylphenyl)-1 triazine using 0.2 eq resorcinol and 3 eq AICI, with 0.55 eq HBO
To a stirring mixture of I eq of cyanuric chloride, 3 eq of AICI3 and 0.2 eq of resorcinol in chlorobenzene, was added 0.55 eq of water at ice-bath temperature. An immediate reaction with AIC13 was observed. After 10 min of stirring, 1.9 eq of m-xylene was added. After another 10 min, the cooling bath was removed and the reaction mixture was stirred at room temperature. HPLC analysis of the reaction mixture after 1.5 h at room temperature showed 84% cyanuric chloride conversion to 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine, in a 95:5 ratio respectively. After 2.5 h at room temperature HPLC analysis showed 95%
conversion of cyanuric chloride, and a ratio of 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine to 2,4,6-tris(2,4-di methyl phenyl)-1,3,5-triazine of 94:6.
Thereafter, I eq of resorcinol was added and the reaction mixture was stirred at 85 C for I h.
HPLC analysis of the reaction mixture showed 89.4% 2-(2,4-dihydroxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 7.7% 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine, 1.6% unreacted 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 1.3%
2,4,6-tris(2,4-dihydroxyphenyl)-1,3,5-triazine.
Example 33: Synthesis of 2-(2 4-dihydroxyphenyl)- 6-bis Z 4 dimethylphenyll-1 triazine using 3 eq AlCl. with 0.55 eq water To a stirring mixture of I eq of cyanuric chloride, 3 eq of AIC13 in chlorobenzene, was added 0.55 eq of water at ice-bath temperature. After 10 min 1.9 eq of m-xylene was added. HPLC analysis after 30 min at room temperature showed 93% cyanuric chloride conversion to 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine, in a ratio of 94:6 respectively.
After 1 h at room temperature HPLC analysis showed 98% cyanuric chloride conversion to 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine, in a ratio of 92:8. After 4.5 h at room temperature, HPLC analysis showed conversion of cyanuric chloride had increased to 99%, and the ratio of 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine to 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine was 93:7.
Thereafter, 1.1 eq of resorcinol was added and the mixture stirred at 85 C
for 2 h.
HPLC analysis of the reaction mixture showed 91.1% 2-(2,4-dihydroxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 6.3% 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine, 1.8% unreacted 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, and 0.75%
2,4,6-tris(2,4-dihydroxyphenyl)- 1,3,5-triazine.

Example 34; Synthesis of 2-chi oro-4.6-bis(2,4-dimethylpheny1)- 1.3.5-triazine using 2.5 eq AIC13 with 0.55 eq water To a stirring mixture of 1 eq of cyanuric chloride, 2.5 eq of AIC13 in chlorobenzene, was added 0.55 eq of water at ice-bath temperature. Analysis by HPLC, after 30 min at room temperature, showed 92% conversion of cyanuric chloride to 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine, in a ratio of 94:6. After I h at room temperature, HPLC analysis of the reaction mixture showed 96% conversion of cyanuric chloride, and a ratio of 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine to 2,4,6-tris(2,4-dimethylphenyl)- 1,3,5-triazine of 88:12.
After 4.5 h at room temperature, HPLC analysis showed 97% conversion of cyanuric chloride and a ratio of 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine to 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine of 77:23.

Example 35: Synthesis of 2-chloro-4.6-bis 2.4-dimethylphenyll-1.3.5-triazine using 3.25 eq AlCl, with 0.55 eqwater To a stirring mixture of 1 eq of cyanuric chloride, 3.25 eq of AIC13 in chlorobenzene, was added 0.55 eq of water at ice-bath temperature. After 10 min 1.9 eq of m-xylene was added. Within I h, 98% conversion of cyanuric chloride was detected, based on HPLC
analysis. The ratio of 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine to 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine was 92:8. A final sample analysis after complete disappearance of m-xylene showed 99% cyanuric chloride conversion, and the ratio of the products, 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine to 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine, was 89:11.

Example 36: Synthesis of 2-chloro-4,6-bis(2,4-dimethvlphenyl1.3.5-triazin using 3 eq A1Cl, without promoter To a stirring mixture of 1 eq of cyanuric chloride, 3 eq of A1C13 in chlorobenzene was added. After 10 min 1.9 eq of m-xylene was added. HPLC analysis after 2 h showed 5% cyanuric chloride conversion to 2,4-dichloro-6-(2,4-dimethylphenyl)-1,3,5-triazine.
After 24 h at room temperature HPLC analysis showed 46% cyanuric chloride conversion to 2,4-dichloro-6-(2,4-dimethylphenyl)-1,3,5-triazine and 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine in a 96:4.

Example 37: Synthesis of 2-chloro-4.6-bis(2.4-dimethylphenyl)-1.3.5-triazine using 3.25 eq AICI3 without promoter The cyanuric chloride was allowed to react with 2 eq of m-xylene in the presence of 3.25 eq of AICl3 in chlorobenzene at 5 C for 0.5 h and then at room temperature for 3 h.
HPLC analysis. After 4 h, showed about 15% cyanuric chloride conversion to 2,4-dichloro-6-(2,4-dimethylphenyl)-1,3,5-triazine; no 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine or 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine was detected. After 24 h at room temperature, HPLC analysis showed about 51% conversion of cyanuric chloride to 2,4-dichloro-6-(2,4-dimethylphenyl)-1,3,5-triazine and 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, formed in a 91:9 ratio.

Example 38: Synthesis of2-chloro-4,C-his(M-dimethylphenyl)-1,3,5-triazine rising 3.5 eq AIC13 without promoter The cyanuric chloride was allowed to react with 2 eq of ni-xylcnc in the presence of 3.5 eq of AIC13 in chlorobenzene at 5 C for 0.5 h and then at room temperature for 3 h HPLC analysis. After 4 h, showed about 6% cyanuric chloride conversion to 2,4-dichloro-6-(2,4-dimethylphenyl)-1,3,5-triazine; no 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine or 2,4,6-tiis(2,4-dinmethylphcnyl)-1,3,5-triazine was detected. After 24 h at room temperature, HPLC analysis showed about 38% conversion of cyanuric chloride to 2,4-dichloro-6-(2,4-dimethylphenyl)-1,3,5-triazine and 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, formed in a 96:4 ratio.

Example 39: Preparation of 2-(2,4-dihvdroxyphenyl)-4.6-bis(2.4-dimethylphenvl -triazine with dichloromethane and 2.5 eq AIC13 To a stirring mixture of 1 eq of cyanuric chloride 0.4 eq of dichloromethane in chlorobenzene was added 2.5 eq of aluminum chloride at ice-bath temperature, the cooling bath was removed and the reaction mixture stirred at room temperature. The HPLC analysis after 3 h at room temperature showed 14% of cyanuric chloride conversion to 2,4-dichloro-6-(2,4-dimethylphenyl)-1,3,5-triazine and 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine formed in a ratio of 93:7. After about 14 h at room temperature, HPLC
analysis showed 98.5% cyanuric chloride conversion to 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine in a ratio of 87:13.
To the above reaction mixture, 1 eq of resorcinol was added and the mixture stirred at 80-85 C for 1 h. HPLC analysis of the reaction mixture showed 76% of 2-(2,4-dihydroxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 14% of 2,4,6-tris(2,4-dimethylphenyl)- 1,3-5-triazine.

Example 40: Preparation of 2-(2,4-dihydroxypheny1).4 6-bis(2 4-dimethylphenvl)-triazine with dichloromethane, resorcinol and 2.5 eq aluminum chloride To a stirring mixture of 1 eq of cyanuric chloride, 0.4 eq of dichloromethane, and 0.2 eq of resorcinol in chlorobenzene, was added 2.5 eq of aluminum chloride at ice-bath temperature, the cooling bath was removed and the reaction mixture stirred at room temperature. After 15 min, 1.9 eq of m-xylene was added and after 15 min of stirring at ice-bath temperature, the cooling bath was removed and the reaction mixture stirred at room temperature. HPLC analysis after 3 h at room temperature showed 95% of cyanuric chloride conversion to 2-chloro-4,6 bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine formed in a ratio of 92:8.

To the above reaction mixture, 1 eq of resorcinol was aekled and the mixture stirred at 80-85 C for 1.5 h. HPLC analysis of the reaction mixture showed 80.5% of 2-(2,4-(iihydroxyphenyl)-4,6-his(2,4-(iimcthylphenyl)-1,3,5-triazine an(I 9.9%
of 2,4,6-tris(2,4-(Iimethylphenyl) I,3,5-triazine.
Example 41: Preparation of 2-(2.4-dih dy roxyphenyl)-4.6-bis(2 4-dimethylphenyl)-1 3 5-triazinc with 2.3 eq of ter(-butyl chloride and 2.5 eq aluminum chloride To a stirring mixture of I eq of cyanuric chloride and 2.5 eq ol'aluminum chloride in chlorobenzene at ice bath temperature was added 2.3 eq of tert-butyl chloride over- 1 h.
After 5 min. of stirring, 1.95 eq of m-xylene was added over 5 min. The ice bath was replaced with a water bath, and the reaction mixture was allowed to warmed to room temperature. After 5 min. at room temperature, HPLC analysis showed 97% of cyanuric chloride conversion to 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)1,3, 5-triazine, present in a ratio of 98:2, To the above reaction mixture was added 1.1 eq of resorcinol, and the mixture stirred at 80 C for 3 h. HPLC analysis of the reaction mixture showed 94% of 2-(2,4-dihydroxyphenyl)-4,6 bis(2,4-dimethylphenyl)-1,3-triazine, 3.5% of 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine, 2.5% of unreacted 2-chloro-4,6-bis(2,4-dimethylphenyl)- 1,3,5-triazine.
Example 42: Preparation of 2-chloro-4.6-bis(2 4-dimethylphenyl)-1 3 5-triazine with 0.46 eq of tert-butyl chloride with 2.5 eg aluminum chloride To a stirring mixture of I eq of cyanuric chloride and 2.5 eq of aluminum chloride in chlorobenzene at ice bath temperature was added 0.46 eq of tert-butyl chloride over 10 min.
After 5 min. of stirring, 1.95 eq of m-xylene was added over 5 min. After 5 min., the ice bath was replaced with a water bath, and the reaction mixture warmed to room temperature.
After stirring at room temperature for 22 h, HPLC analysis showed 98% of cyanuric chloride conversion to 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris (2,4-dimethylphenyl)-1,3,5-triazine, present in a ratio of 84:16.
, Example 43: Preparation of 2-(2.4-dih droxyphenyl)-4 6-bis(2 4-dimethylphenyl)-triazine with 0.5 eq tert-butylchloride. 0.2 resorcinol and 2.5 eq aluminum chloride To a stirring mixture of 1 eq of cyanuric chloride, 0.2 eq of resorcinol, and 2.5 eq of aluminum chloride in chlorobenzene at ice bath temperature was added 0.5-eq of tert-butyl chloride over 10 min. After 5 min. of stirring, 1.95 eq of m-xylene was added.
The ice bath was replaced with a water bath, and the reaction mixture was allowed to warm to room temperature. After stirring at room temperature for 2 h, HPLC analysis showed 97% of cyanuric chloride conversion to 2-chloro-4,6-bis(2,4-dimcthylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine, present in a ratio of 91:9.
To the above reaction mixture was added I eq of resorcinol, and the mixture stirred at 78-82 C for 3 h. HPLC analysis of the reaction mixture showed 86% of 2-(2,4-dihydroxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 12% of 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine, 2% of unreacted 2-chloro-4,6-bis(2,4-di methylphenyl)-1,3,5-triazine.

Example 44: Synthesis of 2-(2,4-dihydroxyphenyl -4,6-bis 2.4-dimethylphenyl -1 triazine using sodium hydroxide and 3 eg of aluminum chloride To a stirring mixture of 3.7 g (1 eq) of cyanuric chloride, 8 g (3 eq) of aluminum chloride in 50 mL chlorobenzene, was added 0.4 mL of aqueous sodium hydroxide solution (50%) at ice-bath temperature. After 10 min of stirring, 1.9 eq of m-xylene was added. The cooling bath was removed and the reaction mixture stirred at room temperature.
HPLC
analysis after 30 min at room temperature showed 91% of cyanuric chloride conversion to 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine, formed in a ratio of 96:4. A second sample analyzed after I h at room temperature showed 94% of cyanuric chloride conversion to 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylpheny)-1,3,5-triazine, in a ratio of 92:8. After a total of 4 h at room temperature, HPLC analysis showed 95%
conversion of cyanuric chloride and a ratio of 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine to 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine of 89:11.
To the above reaction mixture, 1.1 eq of resorcinol was added and the mixture heated with stirring at 80 C for 2 h. HPLC analysis of the reaction mixture showed 80% of 2-(2,4-dihydroxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 16% of 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine, 1.5% unreacted 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2.2% of 2,4,6-tris(2,4-d ihydroxylphenyl)-1,3,5-triazine.

Example 45: Synthesis of 2-(2.4-dih droxyphenyl)-4 6-bis(2 4-dimeth Iy phenyl)-triazine using aluminum hydroxide with 3 eg aluminum chloride To a stirring mixture of 3.7 g (1 eq) of cyanuric chloride, 8 g (3 eq) of aluminum chloride in 50 mL chlorobenzene was added 0.39 g (0.5 eq) of aluminum hydroxide at ice-bath temperature. After 10 min of stirring, 1.9 eq of m-xylene was added.
The cooling bath was removed after 10 min and the reaction mixture stirred at room temperature. HPLC
analysis after 20 h at room temperature showed 98% of cyanuric chloride conversion to 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine, formed in a ratio of 80:20.
To the above reaction mixture, 1.1 eq of resorcinol was added and the mixture heated with stirring at 80 C for 2 h. HPLC analysis of the reaction mixture showed 74% of 2-(2,4-dihydroxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 22% of 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine, 1.5% of unreacted 2-chloro-4,6-bis(2,4-dimethyl phenyl)-1,3,5-triazine, and 1.4% of 2,4,6-tris(2,4-dihydroxylphenyl)-1,3,5-triazine.

Example 46: Synthesis of 2-(2.4-dihydroxyphenyl)-4.6-bis(2 4-dimethylphenyl)-triazine using aq. ammonium hydroxide with 3 eq aluminum chloride To a stirring mixture of I eq of cyanuric chloride and 3 eq of aluminum chloride in chlorobenzene at ice bath temperature was added 0.38 eq of aq. ammonium hydroxide over min. After 15 min. of stirring, 1.95 eq of m-xylene was added. The ice bath was 15 replaced with a water bath, and the reaction mixture was allowed to warm to room temperature. After 4 h at room temperature, HPLC analysis showed 97% of cyanuric chloride conversion to 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine, present in a ratio of 89:11.
After an additional I h at room temperature, the cyanuric chloride conversion was >99%% and the 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine to 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine ratio was at 89:11.
To the above reaction mixture was added 1.1 eq of resorcinol, and the mixture stirred at 78-82 C for 3 h. HPLC analysis of the reaction mixture showed 84%
of 2-(2,4-d ihydroxylphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 12% of 2,4,6-tris(2,4-d imethylphenyl)-1,3,5-triazine, and 2% of unreacted 2-chloro-4,6-bis(2,4-dimethylphenyl)- 1,3,5-triazine.

Example 47: Synthesis of2-(2.4-dihvdroxyphennyl)-4,6-bis(2 4-dimethylphenyl)-1 triazine using sodium methoxide and 3 eq aluminum chloride To a stirring mixture of 3 eq of aluminum chloride in chlorobenzene at ice bath temperature was added 0.5 eq of sodium methoxide over 15 min. The reaction mixture was warmed to room temperature for 0.5 h and then cooled back to ice bath temperature. To the reaction mixture was added 1 eq of cyanuric chloride and 1.95 eq of m-xylene.
The ice bach was replaced with a water bath, and the reaction mixture warmed to room temperature.
After 7.5 h at room temperature, HPLC analysis showed 98% cyanuric chloride conversion to 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine, present in a ratio of 75:25.

To the above reaction mixture was added 1.1 eq of resorcinol, and the mixture stirred at 85 C for 4 h. HPLC analysis of the reaction mixture showed 80% of 2-(2,4-d ihydroxyphcnyl)-4,6-bis(2,4-dimcthylphenyl)-1,3,5-triazinc, 18% of 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine and 2% of unreacted 2-chloro-4,6-his(2,4-dim ethyl phenyl)- 1,3,5-triazine.

Example 48: Synthesis of 2-chloro-4.6-bis(2.4-dimethylphenyl -1,3,5-triazine using a-methylstyrene with 3 eq aluminum chloride To a stirring mixture of 1 eq of cyanuric chloride, 3 eq of aluminum chloride in chiorobenzenc was added 0.5 cq of a-mcthylstyrenc at ice-bath temperature.
After 10 min of stirring, 1.9 eq of m-xylene was added. After another 10 min, the cooling bath was removed and the reaction mixture was stirred at room temperature. HPLC
analysis after 16 h at room temperature showed 96% of cyanuric chloride conversion to 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine (tris-xylyl triazine), formed in a ratio of 73:27.

Example 49: Synthesis of 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3 5-triazine with 3 ea aluminum chloride without promoter To a stirring mixture of I eq of cyanuric chloride, 3 eq of aluminum chloride in chlorobertzene was added at ice-bath temperature. After addition of m-xylene, the reaction mixture was allowed to stir at room temperature for a total of 24 h. HPLC
analysis of the reaction mixture showed about 46% cyanuric chloride conversion to 2,4-dichloro-(2,4-dimethylphenyl)-1,3,5-triazine and 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, formed in a ratio of 96:4.
Example 50: Synthesis of 2-chloro-4.6-bis(2 4-dimethylphenyl)-1 3 5-triazine with but- - I
chloride and 3 eq aluminum chloride To a stirring mixture of 1 eq of cyanuric chloride, 3 eq of aluminum chloride in chlorobenzcnc was added 0.5 eq of butyryl chloride at ice-bath temperature.
After 10 min of stirring, 1.9 eq of m-xylene was added. After another 10 min, the cooling bath was removed and the reaction mixture was stirred at room temperature. HPLC
analysis after 16 h at room temperature showed 92% of cyanuric chloride conversion to 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine, formed in a ratio of 78:22.

Example 51: Synthesis of 2-(2.4-dihydroxyphenyl) 4,6-bis 2 4-dimethylphenyl)-]
3.5-triazine using pyridine hydrochloride with 3.5 eq of aluminum chloride To a stirring mixture of I eq of cyanuric chloride and 3.5 eq of aluminum chloride in chlorobenzene was added 0.5 eq of pyridine hydrochloride at ice-bath temperature. After 10 min of stirring, 1.9 eq of m-xylene was added. The reaction mixture was stirred for 1 h at ice bath temperature, 3.5 hat 10 C, and 6.5 hat 15-20 C. HPLC analysis showed 98% of cyanuric chloride conversion to 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine, formed in a ratio of 88:12.
To the above reaction mixture was added 1.1 eq of resorcinol, and the mixture stirred at 85 C for 3 h. 1-IPL.C analysis of the reaction mixture showed 86%
of 2-(2,4-dihydroxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 13% of 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine, and 1% of unreacted 2-chloro-4,6-bis(2,4-dimethylphenyl)- 1,3,5-triazine.

Example 52: Synthesis of 2-chloro-4.6-bis(2.4-dimethylphenyl) 1.3.5-triazine using a aluminum chloride To a stirring mixture of 1 eq of cyanuric chloride and 3.5 eq of aluminum chloride in chlorobenzene, after 10 min of stirring, 1.9 eq of m-xylene was added. HPLC
analysis after 4 lh at room temperature showed 6% cyanuric chloride conversion to 2,4-dichloro-6-(2,4-dimethylphenyl)-1,3,5-triazine with no formation of 2-chloro-4,6-bis(2,4-dimethylphenyl)- 1,3,5-triazine. The reaction mixture was stirred at room temperature for 24 h. HPLC analysis showed about 38% conversion of cyanuric chloride to 2,4-dichloro-6-(2,4-dimethylphenyl)-1,3,5-triazine and 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, in a 96:4 ratio.
Example 53: Synthesis of 2-chloro-4.6-bis 2 4-dimethylphenyl)-1 3 5-triazine using benzvltriethylammonium chloride and resorcinol and 2.5 eq aluminum chloride To a stirring mixture of 1 eq of cyanuric chloride, 0.2 eq benzyltriethylammonium chloride, and 0.2 eq of resorcinol in chlorobenzene was added 2.5 eq of aluminum chloride at ice-bath temperature. After 10 min. of stirring, 1.9 eq of m-xylene was added. The reaction mixture was stirred for 1 hour at ice bath temperature, and 3 h at 18 - 20 C. HPLC
analysis showed 72% of cyanuric chloride conversion to 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine, in a ratio of 86:14.

Example 54: Synthesis of 2-(2,4-dih dy roxyphcnyl)-4.6-bis(2,4-dimethylphenyyl)-1 3 5-triazine using lithium chloride with 3 eq of aluminum chloride To a stirring mixture of I eq of cyanuric chloride and 3 eq of aluminum chloride in chlorobenzene was added 0.5 eq of lithium chloride at ice-bath temperature.
After 10 min.
of stirring, 1.9 cq of m-xylenc was added. The reaction mixture was allowed to stir at room temperature. HPLC analysis of the reaction mixture after 44 h of stirring at room temperature showed 97% cyanuric chloride conversion to 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine, in a ratio of 81:19.
To the above reaction mixture, 1.1 eq of resorcinol was added and the mixture stirred at 70 C for 3 hours. HPLC analysis of the reaction mixture showed 76%
of 2-(2,4-dihydroxyphenyl)-4,6-bis(2,4-di methylphenyl)-1,3,5-triazine, 20% of 2,4,6-tris(2,4-dimethylphenyl)- 1,3,5-triazine, 1% of unreacted 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, and 2% of2,4,6-tris(2,4-dihydroxylphenyl)-1,3,5-triazine.

Example 55: Preparation of 2-(2.4-dihydroxvphenyl -4.6-bis(2 4-dimethylphenvl)-tria ine Part A: Preparation of 2-chloro-4,6-bis(2.4-dimethylphen ril)-1 3 5-triazine using 0.50 eq of allyl bromide as promoter To a stirring mixture of 1 eq of cyanuric chloride and 3 eq of aluminum chloride in chlorobenzene at ice bath temperature was added 0.5 eq of allyl bromide over 20 min. An immediate reaction with aluminum chloride was observed during the addition.
After 10 min at 0-1 C, 1.9 eq of m-xylene was added over 5 min. After 30 min at 0-1 C, the ice bath was replaced with a cold-water bath, and the reaction mixture was stirred at 17-19 C for 25.5 h. HPLC analysis showed 95% of cyanuric chloride conversion to 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine, present in a ration of 86:14. A small amount of by-product was detected, probably arising from the reaction of 2-chloro-4,6-(2,4-dimethylphenyl)-1,3,5-triazine (CDMPT) with allyl bromide, was observed. Ii'this product is counted along with CDMPT itself', the bis-xylyl-mono-chloro-triazine to tris-xylyl-triazine ratio increases to 89:11.
Part B: Preparation of 2-(2.4-dih droxyphenyl)-4 6-bis(2 4-dimethvlphenvl -1 3 triazine To the above reaction mixture was added 1:1 eq resorcinol and the mixture was stirred at 85 C for 17 h. HPLC analysis of the reaction mixture showed 87%
2-(2,4-dihydroxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 13%
2,4,6-tris(2,4d i methylphenyl)-1,3,5-triazine.

Example 56: Prcparation of 2-(2,4-dihydroxyphenyl)-4 6-bis(2 4-dimethylphenyl)-triazine Part A: Preparation of 2-chloro-4,6-his(2.4-dimethylphenyl)-1 3 5-triazine=
using 0.4 eq of 3-methyl -2-buten-l-o1 as promoter To a stirring mixture of'] cq of cyanuric chloride and 3 eq of aluminum chloride in chlorobenzene at -13 C to -15 C was added 0.4 eq of 3-methyl-2-buten- l -ol over 15 min.
An immediate reaction with aluminum chloride was observed during the addition.
The mixture was allowed to warm to 0-1 C and after stirring for 10 min, 1.9 eq of m-xylene was added over 10 min. After stirring for 2 h at 0-1 C, the ice bath was replaced with a cold-water bath and the reaction mixture was stirred at 15-16 C for 18 h. HPLC
analysis showed 94% of cyanuric chloride conversion to 2-chloro-4,6,-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine in a ratio of 86:14.
Part B: Preparation of 2-(2.4-dihydroxyphenyl)-4 6-bis(2 4-dimeth henv_1)-1 3 triazine To the above reaction mixture was added 1.1 eq of resorcinol and the mixture was stirred at 85 C for 2 h. HPLC analysis of the reaction mixture showed 84% of 2-(2,4-dihydroxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine, 14%
2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine, and 2% unreacted 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine.
Example 57: Preparation of 2-(2.4-dihydroxyphenvl)-4 6-bis(2 4-dimethylphenyl -triazine Part A: Preparation of 2-chloro-4.6-bis(2 4-dimethylphenyl)-t 3 5-triazine using, 0.5 eq of benzoyl chloride aspromoter To a stirring mixture of I eq of cyanuric chloride and 3 eq of aluminum chloride in chlorobenzene at 1-2 C was added 0.5 eq of benzoyl chloride over 10 min. After stirring for 10 min, 1.9 eq of m-xylene was added over 6 min. After stirring for 2 hat 0-1 C, the ice bath was replaced with a cold water bath and the reaction mixture was allowed to warm to 15-16 C and stirred for 19 h. HPLC analysis showed 84% of cyanuric chloride conversion to 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)- 1,3,5-triazine in a ratio of 86:14.
Part B: Preparation of 2-(2.4-dihxdroxyphenyl)-4 6-bi12 4-dimethylphenyl 1 3 5 triazine To the above reaction mixture was added 1.1 eq of resorcinol and the mixture was stirred at 85 C for 2 h. HPLC analysis of the reaction mixture showed 80%
2-(2,4-dihydroxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 20%
2,4,6-tris(2,4-dimethylphenyI)-1,3,5-triazine.

I xample 5R: Preparation of 2-chloro-4,6-his(2,4-(Iimethylphenyl)-1,3,5-triazine using 0.5 eq of propanesulfonyl chloride as promoter To a stirring mixture of 1 eq of cyanuric chloride and 3 eq of aluminum chloride in chlorobenzene at 0-1 C was added 0.5 eq of propanesulfonyl chloride over 10 min. An immediate reaction with aluminum chloride was observed during the addition.
After stirring for 10 min at 1-2 C, 1.9 eq of m-xylene was added over 6 min. After stirring for 2 h at 0-2 C, the ice bath was replaced with a cold water bath, the reaction was allowed to warm to 16-18 C and was stirred for 20 h. HPLC analysis showed 92% of cyanuric chloride conversion to 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine in a ratio of 90:10.

Example 59: Preparation of t-chloro-4,6-bis(2.4-dimethylphenyl)-1.3,5-triazine using 0.5 eq of p-toluenesulfonyl chloride as promoter To a stirring mixture of I eq of cyanuric chloride and 3 eq of aluminum chloride in chlorobenzene at 0-2 C was added 0.5 eq of p-toluenensulfonyl chloride over 10 min. After stirring for 10 min, 1.9 eq of m-xylene was added over 6 miii. After stirring at 0-1 C, the ice bath was replaced with a cold water bath, the reaction mixture was allowed to warm to 16-17'C and was stirred for 21 h. The water bath was removed and the temperature was allowed to warm to 23 C. HPLC analysis showed the conversion of cyanuric chloride to 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine in a ratio of 79:21.

Example 60: Preparation of 2-chloro-4.6-his(2,4-dimcthylphenyl)-1.3.5-triazinc using 0.5 ee of acetic anhydride as promoter To a stirring mixture of 1 eq of cyanuric chloride and 3 eq of aluminum chloride in chlorobenzene at 1-2 C was added a solution of 0.5 eq of acetic anhydride in chlorobenzene over 10 min. An immediate reaction with aluminum chloride (exotherm) was observed during addition. After stirring for 10 min, 1.9 eq of m-xylene was added over 6 min. After stirring at 0-1 C for 2 h, the ice bath was replaced with a cold water bath, the reaction mixture was allowed to warm to 16 C and was stirred for 19 h. HPLC analysis showed the complete conversion of m-xylene, but only 72% conversion of cyanuric chloride to 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine in a ratio of 84:16.

Example 61: Preparation of 2-(2,4-dihydroxyphenyl -4.6-bisphenvl-1.3.5-triazine Part A: Preparation of 2-chloro-4.6-bisphenyl-1.3,5-triazine using concentrated HCI
as a Reaction Promoter To a stirring mixture of I eq of cyanuric chloride and 3 eq of aluminum chloride in o-dichlorobenzene at ice bath temperature was added concentrated HCI. (13 wt%
based on cyanuric chloride). After 10 minutes, 1.95 eq of benzene was added and the reaction mixture stirred at ice bath temperature for 10 minutes. The cooling bath was removed, the reaction was allowed to warm to room temperature, and stirred. After 26 h at room temperature, an HPLC analysis indicated about 86% cyanuric chloride conversion to 2-chloro-2,6-bisphenyl-1,3,5-triazine. The stirring was continued for 24 h at room temperature. The HPLC analysis showed the cyanuric chloride conversion to 92%
with >96% being 2-chloro-4,6-bisphenyl-1,3,5-triazine and less than 2% of 2,4,6-trisphenyl-1,3,5-triazine. The result was confirmed by LCMS.
Part B: Preparation of 2-(2 4-dih rdroxyphenyl)-4 6-bisphenyl-1 3 5-triazine To the above reaction mixture was added 1.1 eq of resorcinol and the mixture was heated to 80 C. Within 2 h, HPLC analysis indicated about 80% of 2-chloro-4,6-bisphenyl-1,3,5-triazine conversion to 2-(2,4-dihydroxyphenyl)-4,6-bisphenyl-1,3,5-triazine.
Comparative Example 61: Preparation of 2-chloro-4.6-bisphenvl-1.3.5-triazine without concentrated HCI
To a stirring mixture of I eq of cyanuric chloride and 3 eq of aluminum chloride in o-dichlorobenzene at ice bath temperature was added 1.95 eq of benzene and the reaction mixture was stirred at ice bath temperature for 10 minutes. The cooling bath was removed, the reaction mixture was allowed to warm to room temperature, and stirred.
After about 26 h, an HPLC analysis indicated almost no cyanuric chloride conversion and no presence of 2-chloro-4,6-bisphenyl-1,3,5-triazine. The stirring was continued for an additional 24 h at room temperature. An HPLC analysis showed almost no cyanuric chloride conversion and no 2-chloro-4,6-bisphenyl-1,3,5-triazine.

Example 62: Preparation of 2-(2.4-dihydroxyphenyl)-4.6-bis(4-methylphenvl)-1 3 5-triazine Part A: Preparation of 2-chloro-4.6-bis(4-methylphenyl)-1 3 5-triazine using concentrated HCl To a stirring mixture of I eq of cyanuric chloride and 3 eq of aluminum chloride in o-dichlorobenzene at ice bath temperature was added concentrated HCl (13 wt %
based on cyanuric chloride). After 10 minutes, 1.9 eq of toluene was added and the reaction mixture was stirred at ice bath temperature for 30 minutes. The cooling bath was removed, the reaction mixture was allowed to warm to room temperature, and stirred for 21 h. HPLC

analysis indicated about 95% cyanuric chloride conversion to 2-chloro-4,6-his(4-mc(hylphcnyl)-13,5-triazinc and the isomer 2-chloro-4-(4-mcthylphcnyl)-6-(2-methy l phony l)- I ,3,5-triazinc.
Part B: Preparation of 2-(2.4-dihydroxyphenyl)-4,6-bis(4-methylphenyl)-I.3.5-triazine To the above reaction mixture was added 1.1 eq of resorcinol and the mixture was heated to 80 C. Within 3 h, an FIPLC analysis indicated 2-chloro-4,6-bis(4-methylphcnyl)-I,3,5-triazine had converted to 2-(2,4-dihydroxyphenyI)-4,6-bis(4-methylphenyl)-1,3,5-triazine. HPLC analysis of the crude product showed 78% of 2-(2,4-dihydroxyphenyl)-4,6-his(4-mcthylphcnyl)-1,3,5-triazinc, 11% of the isomer with probable structure of 2-(2,4-dihydroxyphenyl)-4-(4-methylphenyl)-6-(2-methylphenyl)-1,3,5-triazine.
Comparative Example 62: Preparation of 2-chloro-4.6-bis(4-methylohenyl'-1.3.5-triazine without concentrated HCl To a stirring mixture of 1 eq of cyanuric chloride and 3 eq of aluminum chloride in o-dichlorobenzene at ice bath temperature was added 1.9 eq of toluene and the reaction mixture was stirred at ice bath temperature for 10 minutes. The cooling bath was removed, the reaction mixture was allowed to warm to room temperature. After about 2 h, an HPLC
analysis indicated no reaction of cyanuric chloride. The stirring was continued for about 20 h at room temperature. HPLC analysis showed almost no reaction of cyanuric chloride and the absence of 2-chloro-4,6-bis(4-methylphenyl)-1,3,5-triazine.

Example 63: Preparation of 2-(2,4-dihydroxyphenyl)-4,6-bis(3.4-dimethvlahenyl)-1.3.5-triazine Part A: Preparation of 2-chloro-4.6-bis(3.4-dimethylphenyl -l.3.5-triazine using concentrated HCI
To a stirring mixture of 1 eq of cyanuric chloride and 3 eq of aluminum chloride in o-dichlorobenzene at ice bath temperature was added concentrated HC1(13 wt %
based on cyanuric chloride). After 30 minutes, the reaction was further cooled to about -5 C and 1.9 eq of xylene was added. The reaction mixture was stirred at about 0 C for 2 h, and then at room temperature for 4 h. HPLC analysis indicated >95% cyanuric chloride conversion to 82% 2-chloro-4,6-bis(3,4-dimethylphenyl)-1,3,5-triazine and 6% of its isomer.
Part B: Preparation of 2-(2 4-dih droxyphenyl)-4 6-bis(3 4-dimethylphenyl)-1.3 triazine To the above reaction mixture was added 1.1 eq of resorcinol and the mixture was heated to 80 C. Within 2 h, an HPLC analysis indicated 2-chloro-4,6-bis(3,4-dimethylphenyl)-1,3,5-triazine and its isomer had completely reacted to form 83%

of 2-(2,4-dihydroxyphcnyl)-4,6-bis(3,4-dimcthylphcnyl)-1,3,5-triazine and 6%
of its isomer.

Comparative Example 63: Preparation of 2-chloro-4.6-bis(3 4-methylphenyl)-1 3 5-triazine without concentrated HCI
To a stirring mixture of I eq of cyanuric chloride and 3 eq of aluminum chloride in o-dichlorobcnzenc at ice bath temperature was added 1.9 cq of o-xylcnc and the reaction mixture was stirred at ice bath temperature for I h. The cooling bath was removed and the reaction mixture was allowed to warm to room temperature. After about 2 h, an HPLC
analysis indicated no reaction of cyanuric chloride. The stirring was continued for about 20 h at room temperature. HPLC analysis showed no significant conversion of cyanuric chloride and the absence of 2-chloro-4,6-bis(3,4-methylphenyl)-1,3,5-triazine.

Example 64: Preparation of 2-(2.4-dihydroxyphenyl)-4 6-bis(4-biphenyl)-1 3 5-triazine Part A: Preparation of 2-chloro-4.6-bis(4-biphenyl)-1 3 5-triazine using concentrated f To a stirring mixture of I eq of cyanuric chloride and 3 eq of aluminum chloride in o-dichlorobenzene at ice bath temperature was added concentrated HCI (13 wt %
based on cyanuric chloride). After 10 minutes, 2 eq of biphenyl was added and the reaction was stirred at ice bath temperature for 1 h. HPLC analysis indicated 88% cyanuric chloride conversion to 2-chloro-4,6-bis(4-biphenyl)-1,3,5-triazine as the major product. The cooling bath was removed, the reaction mixture was allowed to warm to room temperature, and stirred. HPLC analysis after 3 h at room temperature indicated about 93%
cyanuric chloride to 2-chloro-4,6-bis(4-biphenyl) as the major product and confirmed by MS.
Part B: Preparation of 2-(2.4-dih dy roxyphenyl -4 6-bis(4-biphenyl')-1 3 5-triazine To the above reaction mixture was added 1.1 eq of resorcinol and the mixture was heated to 85 C for 2 h. HPLC and MS analysis indicated the formation of 2-(2,4-dihydroxyphenyl)-4,6-bis(4-biphenyl)- 1,3,5-triazine.

Comparative Example 64: Preparation of 2-chloro-4 6-bis(4-biphenyl)-1 3 5-triazine without concentrated HCl To a stirring mixture of 1 eq of cyanuric chloride and 3 eq of aluminum chloride in o-dichlorobenzene at ice bath temperature was added 2 eq of biphenyl and the reaction mixture was stirred at ice bath temperature for I h. HPLC analysis indicated almost no cyanuric chloride conversion and the absence of 2-chloro-4,6-bis(4-biphenyl)-1,3,5-triazine.
The cooling bath was removed and the reaction mixture was allowed to warm to room temperature. After about 3 h, an l-IPLC analysis indicated no reaction of cyanuric chloride and no formation of 2-chloro-4,6-bis(4-biphenyl)-1,3,5-triazine.

Example 65: Preparation of 2-(2,4-dihydroxyphenyl)-4,6-bis 4-tert-butylphenyl)-triainc Part A: Preparation of 2-chloro-4.6-bis(4-tert-butylphenyl)-1 3 5-triazine using concentrated I ICI
To a stirring mixture of 1 eq of cyanuric chloride and 3 eq of aluminum chloride in o-dichlorobenzene at ice bath temperature was added concentrated HCI (13 wt %
based on cyanuric chloride). After 10 minutes, 1.95 eq of tort-butylbcnzcnc was added and the reaction was stirred at ice bath temperature for 10 minutes. The cooling bath was removed, the reaction mixture was allowed to warm to room temperature, and stirred.
After 2 h, HPLC analysis indicated 62% cyanuric chloride conversion to 2-chloro-4,6-bis(4-tert-butylphenyl)-1,3,5-triazine as the major product (>78%). The reaction mixture was stirred at room temperature for an additional 24 h. HPLC analysis showed 83% cyanuric chloride conversion to 2-chloro-4,6-bis(4-tert-butylphenyl)-1,3,5-triazine as the major product (>72%), with the isomer.
Part B: Preparation of 2-(2.4-dih droxyphen ly)-4.6-bis 4-tert-butylphenyll-l triazine To the above reaction mixture was added 1.1 eq of resorcinol and the mixture was heated to 80 C for 2 h. HPLC analysis indicated 63% formation of 2-(2,4-dihyroxyphenyl)-4,6-bi s(4-tert-butylphenyl)-1,3, 5-triazine.

Comparative Example 65: Preparation of 2-chloro-4.6-bis(4-tert-butvlphenyl)-1 3 5-triazine without concentrated HCI
To a stirring mixture of I eq of cyanuric chloride and 3 eq of aluminum chloride in o-dichlorobenzene at ice bath temperature was added 1.95 eq of tert-butylbenzene. The reaction mixture was stirred at ice bath temperature for 10 minutes. The cooling bath was removed, the reaction mixture was allowed to warm to room temperature, and stirred. After about 2 h, an HPLC analysis indicated no reaction of cyanuric chloride and no 2-chloro-4,6-(4-tert-butylphenyl)-1,3,5-triazine formation. The stirring was continued for about 24 h at room temperature. HPLC analysis showed no 2-chloro-4,6-bis(4-tert-butylphenyl)-1,3,5-triazine formation.

I;xaninic 66: Preparation of 2-(2,4-dihydroxy 5-hcxylphenyl)-4 6-bis(4-ter(-butylpheiiyl)-1.3.5-triazine Part A: Preparation of 2-chloro-4.6-bis(4-tort-butylphenyl)-I 3 5-triazine using concentrated HCI
2-Chi oro-4,6-bis(4-tert-butylphenyl)-1,3,5-triazine was prepared essentially following the procedure described in example 67.
Part B: Preparation of 2-(2.4-(Iihydroxy-5-hcxylphenyl)-4 6-bis(4-tort-butylphenvl)-1.3,5-triazine To the above reaction mixture was added 1.1 eq of 4-hexylresorcinol and the mixture was heated to 80 C for 3 h. HPLC analysis indicated conversion of 2-chloro-4,6-bis(4-tert-butylphenyl)-1,3,5-triazine to 2-(2,4-dihydroxy-5-hexylphenyl)-4,6-bis(4-tert-butylphenyl)-1,3,5-triazine as the major product.

Example 67: Preparation of 2-(2-hvdroxy-4-octyloxypheny1) 4 6-bis(2 4-dimethylphenyl)-1.3.5-triazine Part A: Preparation of 2-chloro-4.6-bis(2 4-dimethylphenyl)-I 3 5-triazine 2-Chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine was prepared by allowing to react I eq of cyanuric chloride with 1.9 eq of m-xylene in the presence of 3 eq of aluminum chloride and concentrated 1-ICI in chlorobenzcne as discussed above.
Part B: Preparation of 2-(2-hvdroxy-4-oct loxyphenyl)-4,6-bis 2.4-dimethylphenyl)-1.3.5-triazine To the above reaction mixture was added 1.1 eq of resorcinol monooctyl ether and the mixture was stirred at room temperature for about 20 h. TLC analysis indicated formation of 2-(2-hydroxy-4-octyloxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine as the major product by a direct comparison with a commercial sample of 2-(2-hydroxy-4-octyloxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine.
Example 68: Preparation of 2-(2 4-dihydroxyphenyl)-4 6-bis 2 4-dimethylphenyl)-triazine Part A: Preparation of 2-chloro-4.6-bis(2 4-dimethylphenyl)-1 3 5-triazine=
Simultaneous addition of cyanuric chloride and m-xylene to reaction facilitator prepared from aluminum chloride and concentrated HCI
To a stirring mixture of 3 eq of aluminum chloride in chlorobenzene at 0 C to was added concentrated HCl (6 wt % based on aluminum chloride), and the reaction mixture was stirred for 10 minutes to form the reaction facilitator. To the mixture was added a solution of I eq of cyanuric chloride and 1.9 eq of m-xylene in chlorobenzene at 0 C to 5 C and the reaction was stirred for 10 minutes. HPLC analysis indicated 95%

cyanuric chloride conversion to 2-chloro-4,6-bis(2,4-dimcthylphenyl)-1,3,5-triazine (99%).
The reaction mixture was allowed to stir at 0 C to 5 C For 2 h. HPLC analysis showed 99% cyanuric chloride conversion to 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazinc (98%).
Part 13: Preparation of2-(2,4-dih droxyphenylL4_6-bis(2,4-(Iimcthylohcnyl)-I 3 triazine To the above reaction mixture was added 1.1 eq of resorcinol and the mixture was heated to 80 C for 2 h. HPLC analysis indicated 95% of 2-(2,4-dihyroxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine.
Example 69: Preparation of 2-chloro-4.6-bis(2.4-dimethylphenyl)-1.3 5-triazine in benzene as solvent and concentrated HCI
To a stirring mixture of I eq of cyanuric chloride and 3 eq of aluminum chloride in benzene at 7 C was added concentrated HCl (13% wt based on cyanuric chloride), and the mixture was stirred for 10 minutes. To the reaction mixture was added 1.9 eq of m-xylene and the reaction mixture was stirred at 0 C for 30-35 minutes. The cooling bath was removed, the reaction mixture was allowed to warm to room temperature, and stirred for 3 h. HPLC analysis indicated >97% cyanuric chloride conversion to 2-chloro-4,6-(2,4-dimethylphenyl)-1,3,5-triazine (85%).
Example 70: Preparation of 2-(2.4-dihydroxy-6-methylphenvl)-4.6-bis(2.4-dimethylphenyl)-1.3.5-triazine Part A: Preparation of 2-chloro-4.6-bis(2.4-dimethylphenyl)-1 3 5-triazine complex with reaction facilitator prepared from aluminum chloride and concentrated HCI
To a stirring mixture of I eq of isolated 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine and 3 eq of aluminum chloride in o-dichlorobenzene was added concentrated HCI
(5.9 wt % based on aluminum chloride). After stirring for about 5-6 h at room temperature, the reaction turned orange-red, indicative of a new complex formed between the reaction facilitator, consisting of aluminum chloride and concentrated HC1, and 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine.
Part B: Preparation of 2-(2.4-dih droxy-6-metbylphenyll)-4 6-bis 2.4-dimethylphenyl -1.3.5-triazine The above complex mixture was heated to about 60 C. To the mixture was added I
eq of orcinol (5-methylresorcinol), and the reaction mixture was heated to 80 C to 85 C for 8 h. HPLC analysis indicated almost complete conversion of 2-chloro-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine leading to the formation of 2-(2,4-dihyroxy-6-methylphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine.

Comparative Example 70: Preparation of 2-chloro-4,6-bis(2,4-dimcthvlphenyl) 1 triazine complex with aluminum chloride without concentrated HCI
A mixture of I eel of isolated 2-chloro-4,6-bis(2,4-d imethylphenyl)-1,3,5-triazine and 3 eq of aluminum chloride in o-dichlorobenzene was stirred at room temperature for about 5-6 h. The reaction mixture turned slightly yellow and was not orange-red as in the preceding example, indicative of a lack of the new complex formation from 2-chloro-4,6-bis(2,4-dlimelhylphenyl)- I ,3,5-triazinc.

Example 71: Preparation of reaction facilitator from aluminum chloride and concentrated 11('1 To a stirring mixture of 3 eq of aluminum chloride in o-dichlorobenzene was added concentrated HCl (6 wt% based on aluminum chloride). The reaction mixture was stirred at room temperature. The formation of a new off-white mixture of the reaction facilitator was observed, which did not change its color even after stirring at room temperature for 2 h.
Example 72: Preparation of 2.4,6-trichloro-1.3.5-triazine (cvanuric chloride) complex with reaction facilitator prepared from aluminum chloride and concentrated HCI
To a stirring mixture of I eq of cyanuric chloride and 3 eq of aluminum chloride in o-dichlorobenzenc was added concentrated HCI (13 wt% based on cyanuric chloride). The reaction mixture turned brownish-red after 30 minutes of stirring at room temperature. The reaction became dark brown after an additional 1 h of stirring at room temperature. The color of the reaction mixture indicated the formation of a new complex between cyanuric chloride and the reaction facilitator prepared from aluminum chloride and concentrated HCI.

Comparative Example 72: Preparation of 2.4.6-trichloro-1 3 5-triazine (cyanuric chloride) complex with reaction facilitator prepared from aluminum chloride without concentrated A mixture of 1 eq of cyanuric chloride and 3 eq of aluminum chloride in o-dichlorobenzene was stirred at room temperature for 3 h. No change in color from original off-white was observed, indicating lack of a similar complex formation of cyanuric chloride as in the preceding example, where cyanuric chloride was treated with the reaction facilitator consisting of aluminum chloride and concentrated HCI.

Example 73: Preparation of 2-chloro-4 6- is(2 4 di t phenyl) 1 3 5 triazine using Aliquat-336 To a stirring mixture of I eq of cyanuric chloride and 3 eq of aluminum chloride in benzene at about 0 C was added Aliquat-336 (tricaprylylmethylammonium chloride) (50 wt% based on aluminum chloride). A reaction with aluminum chloride was observed with temperature increase. The reaction mixture was stirred at room temperature for 30 minutes, leading to the formation of a clear orange-red solution. To the resulting complex of cyanuric chloride with reaction facilitator was added 1.9 eq of m-xylene and the reaction mixture was stirred at room temperature for I h. HPLC analysis indicated almost 90%
cyanuric chloride conversion to 2-chloro-4,6-(2,4-dimethylphenyl)-1,3,5-triazine as the major product and 2,4,6-tris(2,4-dimethylphenyl)-1,3,5-triazine as the minor product, formed in a ratio of 3:1.

The invention described and claimed herein is not to be limited in scope by the specific embodiments herein disclosed, since these embodiments are intended as illustrations of several aspects of the invention. Any equivalent embodiments are intended to be within the scope of this invention. Indeed, various modifications of the invention in addition to those shown and described herein will become apparent to those skilled in the art from the foregoing description. Such modifications are also intended to fall within the scope of the appended claims.

Claims

CLAIMS:

1. A process for synthesizing a triazine compound of Formula III:

wherein X is a halogen and Ar1 and Ar2 are the same or different and each is a radical of a compound of Formula II:

wherein R6, R7, R8, R9, and R10 are the same or different and each is hydrogen, halogen, alkyl of 1 to 24 carbon atoms, haloalkyl of 1 to 24 carbon atoms, aryl of 6 to 24 carbon atoms, alkenyl of 2 to 24 carbon atoms, acyl of 1 to 24 carbon atoms, aralkyl of 7 to 24 carbon atoms, aracyl of 6 to 24 carbon atoms, OR, NRR', CONRR', OCOR, CN, SR, SO2R, SO3H, SO3M, wherein M is an alkali metal, R and R' are the same or different and each is hydrogen, alkyl of 1 to 24 carbon atoms, haloalkyl of 1 to 24 carbon atoms, aryl of 6 to 24 carbon atoms, alkenyl of 2 to 24 carbon atoms, acyl of 1 to 24 carbon atoms, cycloalkyl of 5 to 24 carbon atoms, cycloacyl of to 24 carbon atoms, aralkyl of 7 to 24 carbon atoms, or aracyl of 6 to 24 carbons atoms, and optionally with either of R6 and R7, R7 and R8, R8 and R9 , or R9 and R10, taken together being a part of a saturated or unsaturated fused carbocyclic ring optionally containing O, N, or S atoms in the ring, which comprises:

reacting a cyanuric halide of the Formula V:
wherein each X is independently a halide, with at least one compound of Formula II with the reaction being conducted in the presence of a reaction facilitator comprising sufficient amounts of at least one Lewis acid and at least one reaction promoter for a sufficient time at a suitable temperature and pressure, optionally in the presence of at least one solvent, to produce a triazine compound of Formula III, with the proviso that said reaction promoter is different from the compound of Formula II and is an acid, base, water, alcohol, aliphatic halide, halide salt, acid halide, halogen, alkene, alkyne, ester, anhydride, carbonate, urethane, carbonyl, epoxy, ether or acetal compound or a mixture thereof, and is present in an amount of about 0.01 to 5 mol equivalents to the cyanuric halide.

2. A process for synthesizing a triazine compound of the Formula I:

which comprises the following steps:

(i) reacting a cyanuric halide of the Formula V:
where each X is independently a halide, with at least one compound of Formula II:

wherein R6, R7, R8, R9, and R10 are the same or different and each is hydrogren, halogen, alkyl of 1 to 24 carbon atoms, haloalkyl of 1 to 24 carbon atoms, aryl of 6 to 24 carbon atoms, alkenyl of 2 to 24 carbon atoms, acyl of 1 to 24 carbon atoms, aralkyl of 7 to 24 carbon atoms, aracyl of 6 to 24 carbon atoms, OR, NRR', CONRR', OCOR, CN, SR, SO2R, SO3H, SO3M, wherein M is an alkali metal, R and R' are the same or different and each is hydrogen, alkyl of 1 to 24 carbon atoms, haloalkyl of 1 to 24 carbon atoms, aryl of 6 to 24 carbon atoms, alkenyl of 2 to 24 carbon atoms, acyl of 1 to 24 carbon atoms, cycloalkyl of 5 to 24 carbon atoms, cycloacyl of 5 to 24 carbon atoms, aralkyl of 7 to 24 carbon atoms, or aracyl of 6 to 24 carbon atoms, and optionally with either of R6 and R7, R7 and R8, R8 and R9, or R9 and R10, taken together being a part of a saturated or unsaturated fused carbocyclic ring optionally containing O, N, or S
atoms in the ring, with the reaction being conducted in the presence of a reaction facilitator comprising sufficient amounts of at least one first Lewis acid and at least one first reaction promoter chosen from an acid, base, water, alcohol, aliphatic halide, halide salt, acid halide, halogen, alkene, alkyne, ester, anhydride, carbonate, urethane, carbonyl, epoxy, ether, acetal compounds, and mixtures thereof, and is present in an amount of about 0.01 to 5 mol equivalent to the cyanuric halide for a sufficient time at a suitable temperature and pressure, in the presence of at least one solvent, to produce a triazine compound of Formula III:

wherein X is a halogen and Ar1 and Ar2 are the same or different and each is a radical of a compound of Formula II;
and (ii) reacting a compound of Formula III with a compound of Formula IV:

wherein R1, R2, R3, R4, and R5 are the same or different and each is hydrogen, halogen, alkyl of 1 to 24 carbon atoms, haloalkyl of 1 to 24 carbon atoms, alkenyl of 2 to 24 carbon atoms, acyl of 1 to 24 carbon atoms, aryl of 6 to 24 carbon atoms, cycloalkyl of 5 to 25 carbon atoms, cycloacyl of 5 to 24 carbon atoms, aralkyl of 7 to 24 carbon atoms, aracyl of 6 to 24 carbon atoms, OR, NRR', CONRR', OCOR, CN, SR, SO2R, SO3H, SO3M, wherein M is an alkali metal, R and R' are the same or different and each is hydrogen, alkyl of 1 to 24 carbon atoms, haloalkyl of 1 to 24 carbon atoms, aryl of 6 to 24 carbon atoms, alkenyl of 2 to 24 carbon atoms, acyl of 1 to 24 carbon atoms, cycloalkyl of 5 to 24 carbon atoms, cycloacyl of 5 to 24 carbon atoms, aralkyl of 7 to 24 carbon atoms, or aracyl of 6 to 24 carbon atoms, optionally with either of R3, and R4, or R4 and R5, taken together being a part of a saturated or unsaturated fused carbocyclic ring optionally containing O, N, or S atoms in the ring, and Y is a direct bond, O, NR", or SR" wherein R" is hydrogen, alkyl of 1 to 24 carbon atoms, haloalkyl of 1 to 24 carbon atoms, aryl of 6 to 24 carbon atoms, alkenyl of 2 to 24 carbon atoms, acyl of 1 to 24 carbon atoms, cycloalkyl of 5 to 24 carbon atoms, cycloacyl of 5 to 24 carbon atoms, aralkyl of 7 to 24 carbon atoms, or aracyl of 6 to 24 carbon atoms, for a sufficient time, at a suitable temperature and pressure, optionally in the presence of a second Lewis acid, a second reaction promoter chosen from an acid, base, water, alcohol, aliphatic halide, halide salt, acid halide, halogen, alkene, alkyne, ester, anhydride, carbonate, urethane, carbonyl, epoxy, ether, acetal compounds, and mixtures thereof, to form the compound of Formula I, with the proviso that: (1) said reaction promoter is different from the reactant which is reacting in that step, and (2) that the compound of Formula II is different from the compound of Formula IV.

3. The process of claim 2 wherein the reaction to form the compound of Formula III and the reaction to form the compound of Formula I are carried out without isolating the compound of Formula III.

4. The process of claim 1 wherein the Lewis acid is aluminum halide, boron halide, tin halide, zinc halide, lead halide, manganese halide, magnesium halide, copper halide, titanium halide, alkyl aluminum halide, gallium halide, iron halide, arsenic halide, antimony halide, or a mixture thereof, and is present in an amount of about 1 to about mol equivalents to the cyanuric halide.

5. The process of claim 1 wherein the Lewis acid catalyst is aluminum chloride, aluminum bromide, boron trifluoride, tin chloride, zinc chloride, titanium tetrachloride, or a mixture thereof.

6. The process of claim 1, 4 or 5 wherein the solvent is heptane, carbon disulfide, cyclohexane, chlorobenzene, dichlorobenzene, trichlorobenzene, bromobenzene, dibromobenzene, tribromobenzene, toluene, xylene, trimethylbenzene, nitrobenzene, dinitrobenzene, anisole, nitroalkanes, heptane, cyclohexane, benzene, nitrobenzene, dinitrobenzene, 1,1,2,2-tetrachloroethane, dichloromethane, dichloroethane, ether, dioxane, tetrahydrofuran, benzonitriles, dimethylsulfoxide, tetramethylene sulfone, chlorobenzene, dichlorobenzene, trichlorobenzene, fluorobenzene, difluorobenzene, trifluorobenzene, bromobenzene, dibromobenzene, tribromobenzene, or mixtures thereof.

7. The process of claim 1, 4, 5 or 6 which further comprises forming a mixture of the reaction facilitator and a portion of the solvent before combining the mixture with the cyanuric halide of Formula V and the compound of Formula II.

8. The process of claim 7 which further comprises forming a mixture of the cyanuric halide, aromatic compound, and a portion of the solvent before adding the reaction facilitator mixture to the mixture.

9. The process of claim 1, 4, 5 or 6 wherein the compound of Formula II is added between about minutes to 15 hours and at a temperature between about -50°C to about 150°C and the reaction time is between about minutes to about 48 hours and at a temperature between about -50°C to about 150°C.

10. The process of claim 2 wherein the compound of Formula IV is added between about 5 minutes to 10 hours and at a temperature between about 0°C to about 100°C and the reaction time is between about 30 minutes to about 24 hours and at a temperature between about 20°C to about 150°C.

11. The process of claim 2 or 10 wherein step (i) is performed prior to step (ii) and further comprising adding a second Lewis acid and a second reaction promoter along with the compound of Formula IV to react with the compound of Formula III.

12. The process of claim 2 or 3 wherein the steps are performed simultaneously and continuously.

13. The process of claim 11 wherein the second Lewis acid is the same as the first Lewis acid, and the second reaction promoter is the same as the first reaction promoter.

14. The process of claim 1, 4, 5 or 6 wherein the Lewis acid is mixed with the compound of Formula V prior to adding the reaction promoter.

15. The process of claim 1, 4, 5 or 6 wherein the Lewis acid is mixed with the compound of Formula II prior to adding the reaction promoter.

16. The process of claim 2, 10, 11 or 13 wherein the second Lewis acid is mixed with the compound of Formula III
prior to adding the second reaction promoter.

17. The process of claim 2, 10, 11 or 13 wherein the second Lewis acid is mixed with the compound of Formula IV
prior to adding the second reaction promoter.

18. The process of claim 1, 4, 5 or 6 wherein the reaction promoter is mixed with the compound of Formula V
prior to adding the Lewis acid.

19. The process of claim 1, 4, 5 or 6 wherein the reaction promoter is mixed with the compound of Formula II
prior to adding the Lewis acid.

20. The process of claim 2, 10, 11 or 13 wherein the second reaction promoter is mixed with the compound of Formula III prior to adding the second Lewis acid.

21. The process of claim 2, 10, 11 or 13 wherein the second reaction promoter is mixed with the compound of Formula IV prior to adding the second Lewis acid.

22. The process of claim 2, 10, 11 or 13 wherein the compound of Formula III and IV are mixed prior to adding either the second reaction promoter or second Lewis acid.

23. A process for synthesizing a triazine compound of Formula I:

wherein Ar1 and Ar2 are the same or different, and each independently is a radical of a compound of Formula II:

wherein R6, R7, R8, R9, and R10 are the same or different and each is hydrogen, halogen, alkyl of 1 to 24 carbon atoms, haloalkyl of 1 to 24 carbon atoms, aryl of 6 to 24 carbon atoms, alkenyl of 2 to 24 carbon atoms, acyl of 1 to 24 carbon atoms, aralkyl of 7 to 24 carbon atoms, aracyl of 6 to 24 carbon atoms, OR, NRR', CONRR', OCOR, CN, SR, SO2R, SO3H, SO3M, wherein M is an alkali metal, R and R' are the same or different and each is hydrogen, alkyl of 1 to 24 carbon atoms, haloalkyl of 1 to 24 carbon atoms, aryl of 6 to 24 carbon atoms, alkenyl of 2 to 24 carbon atoms, acyl of 1 to 24 carbon atoms, cycloalkyl of 5 to 24 carbon atoms, cycloacyl of 5 to 24 carbon atoms, aralkyl of 7 to 24 carbon atoms, or aracyl of 6 to 24 carbons atoms, and optionally with either of R6 and R7, R7 and R8, R8 and R9, or R9 and R10, taken together being a part of a saturated or unsaturated fused carbocyclic ring optionally containing O, N, or S
atoms in the ring, which comprises:

simultaneously reacting in the presence of a reaction facilitator comprising at least one Lewis acid and at least one reaction promoter chosen from an acid, base, water, alcohol, aliphatic halide, halide salt, acid halide, halogen, alkene, alkyne, ester, anhydride, carbonate, urethane, carbonyl, epoxy, ether, acetal compounds, and mixtures thereof, and sufficient amounts of a cyanuric halide of Formula V:

where the reaction promoter is present in an amount of about 0.01 to 5 mol equivalent to the cyanuric halide, and where each X is independently a halide, with a compound of Formula IV:

wherein R1, R2, R3, R4, and R5 are the same or different and each is hydrogen, halogen, alkyl of 1 to 24 carbon atoms, haloalkyl of 1 to 24 carbon atoms, alkenyl of 2 to 24 carbon atoms, acyl of 1 to 24 carbon atoms, aryl of 6 to 24 carbon atoms, cycloalkyl of 5 to 25 carbon atoms, cycloacyl of 5 to 24 carbon atoms, aralkyl of 7 to 24 carbon atoms, aracyl of 6 to 24 carbon atoms, OR, NRR', CONRR', OCOR, CN, SR, SO2R, SO3H, SO3M, wherein M is an alkali metal, R and R' are the same or different and each is hydrogen, alkyl of 1 to 24 carbon atoms, haloalkyl of 1 to 24 carbon atoms, aryl of 6 to 24 carbon atoms, alkenyl of 2 to 24 carbon atoms, acyl of 1 to 24 carbon atoms, cycloalkyl of 5 to 24 carbon atoms, cycloacyl of 5 to 24 carbon atoms, aralkyl of 7 to 24 carbon atoms, or aracyl of 6 to 24 carbon atoms, optionally with either of R3, and R4, or R4 and R5, taken together being a part of a saturated or unsaturated fused carbocyclic ring optionally containing O, N, or S atoms in the ring, and Y is a direct bond, O, NR", or SR" wherein R" is hydrogen, alkyl of 1 to 24 carbon atoms, haloalkyl of 1 to 24 carbon atoms, aryl of 6 to 24 carbon atoms, alkenyl of 2 to 24 carbon atoms, acyl of 1 to 24 carbon atoms, cycloalkyl of 5 to 24 carbon atoms, cycloacyl of 5 to 24 carbon atoms, aralkyl of 7 to 24 carbon atoms, or aracyl of 6 to 24 carbon atoms, and a compound of Formula II:

wherein R6, R7, R8, R9, and R10 are the same or different and each is hydrogen, halogen, alkyl of 1 to 24 carbon atoms, haloalkyl of 1 to 24 carbon atoms, aryl of 6 to 24 carbon atoms, alkenyl of 2 to 24 carbon atoms, acyl of 1 to 24 carbon atoms, aralkyl of 7 to 24 carbon atoms, aracyl of 6 to 24 carbon atoms, OR, NRR', CONRR', OCOR, CN, SR, SO2R, SO3H, SO3M, wherein M is an alkali metal, R and R' are the same or different and each is hydrogen, alkyl of 1 to 24 carbon atoms, haloalkyl of 1 to 24 carbon atoms, aryl of 6 to 24 carbon atoms, alkenyl of 2 to 24 carbon atoms, acyl of 1 to 24 carbon atoms, cycloalkyl of 5 to 24 carbon atoms, cycloacyl of 5 to 24 carbon atoms, aralkyl of 7 to 24 carbon atoms, or aracyl of 6 to 24 carbon atoms, and optionally with either of R6 and R7, R7 and R8, R8 and R9, or R9 and R10, taken together being a part of a saturated or unsaturated fused carbocyclic ring optionally containing O, N, or S
atoms in the ring, for a sufficient time, at a suitable temperature and pressure, optionally in the presence of at least one solvent, to form the compound of Formula I, with the proviso that: (1) said reaction promoter is different from the compound of the Formula IV and the compound of the Formula II, and (2) the compound of Formula II is different from the compound of Formula IV.

24. A process for synthesizing a triazine compound of Formula I:

wherein Ar1 and Ar2 are the same or different, and each independently is a radical of a compound of Formula II:
wherein R6, R7, R8, R9, and R10 are the same or different and each is hydrogen, halogen, alkyl of 1 to 24 carbon atoms, haloalkyl of 1 to 24 carbon atoms, aryl of 6 to 24 carbon atoms, alkenyl of 2 to 24 carbon atoms, acyl of 1 to 24 carbon atoms, aralkyl of 7 to 24 carbon atoms, aracyl of 6 to 24 carbon atoms, OR, NRR', CONRR', OCOR, CN, SR, SO2R, SO3H, SO3M, wherein M is an alkali metal, R and R' are the same or different and each is hydrogen, alkyl of 1 to 24 carbon atoms, haloalkyl of 1 to 24 carbon atoms, aryl of 6 to 24 carbon atoms, alkenyl of 2 to 24 carbon atoms, acyl of 1 to 24 carbon atoms, cycloalkyl of 5 to 24 carbon atoms, cycloacyl of 5 to 24 carbon atoms, aralkyl of 7 to 24 carbon atoms, or aracyl of 6 to 24 carbon atoms, and optionally with either of R6 and R7, R7 and R8, R8 and R9 , or R9 and R10 , taken together being a part of a saturated or unsaturated fused carbocyclic ring optionally containing O, N, or S
atoms in the ring, which comprises:

reacting in the presence of a reaction facilitator comprising at least one Lewis acid and at least one reaction promoter chosen from an acid, base, water, alcohol, aliphatic halide, halide salt, acid halide, halogen, alkene, alkyne, ester, anhydride, carbonate, urethane, carbonyl, epoxy, ether, acetal compounds, and mixtures thereof, sufficient amounts of a compound of Formula III:

wherein X is independently a halide, and Ar1 and Ar2 are the same or different and each is a radical of a compound of Formula II; with a compound of Formula IV:
wherein R1, R2, R3, R4, and R5 are the same or different and each is hydrogen, halogen, alkyl of 1 to 24 carbon atoms, haloalkyl of 1 to 24 carbon atoms, alkenyl of 2 to 24 carbon atoms, acyl of 1 to 24 carbon atoms, aryl of 6 to 24 carbon atoms, cycloalkyl of 5 to 25 carbon atoms, cycloacyl of 5 to 24 carbon atoms, aralkyl of 7 to 24 carbon atoms, aracyl of 6 to 24 carbon atoms, OR, NRR', CONRR', OCOR, CN, SR, SO2R, SO3H, SO3M, wherein M is an alkali metal, R and R' are the same or different and each is hydrogen, alkyl of 1 to 24 carbon atoms, haloalkyl of 1 to 24 carbon atoms, aryl of 6 to 24 carbon atoms, alkenyl of 2 to 24 carbon atoms, acyl of 1 to 24 carbon atoms, cycloalkyl of 5 to 24 carbon atoms, cycloacyl of 5 to 24 carbon atoms, aralkyl of 7 to 24 carbon atoms, or aracyl of 6 to 24 carbon atoms, optionally with either of R3, and R4, or R4 and R5, taken together being a part of a saturated or unsaturated fused carbocyclic ring optionally containing O, N, or S atoms in the ring, and Y is a direct bond, O, NR", or SR" wherein R" is hydrogen, alkyl of 1 to 24 carbon atoms, haloalkyl of 1 to 24 carbon atoms, aryl of 6 to 24 carbon atoms, alkenyl of 2 to 24 carbon atoms, acyl of 1 to 24 carbon atoms, cycloalkyl of 5 to 24 carbon atoms, cycloacyl of 5 to 24 carbon atoms, aralkyl of 7 to 24 carbon atoms, or aracyl of 6 to 24 carbon atoms, for a sufficient time, at a suitable temperature and pressure, optionally in the presence of at least one solvent, to form the compound of Formula I, with the proviso that: (1) said reaction promoter is different from the compound of Formula IV, and (2) the compound of Formula II is different from the compound of Formula IV.

25. An aryl substituted triazine compound formation reaction facilitator comprising:

at least one Lewis acid;

at least one reaction promoter; and at least one solvent, wherein the solvent is different from the reaction promoter.

26. The reaction facilitator of claim 25 wherein the Lewis acid is present in an amount between about 0.5 to about 500 mol equivalents to the reaction promoter.

27. The reaction facilitator of claim 25 or 26 wherein the Lewis acid is aluminum halide, boron halide, tin halide, zinc halide, lead halide, manganese halide, magnesium halide, copper halide, titanium halide, alkyl aluminum halide, gallium halide, iron halide, arsenic halide, antimony halide, or a mixture thereof, and the reaction promoter is an acid, base, water, alcohol, aliphatic halide, halide salt, acid halide, halogen, alkene, alkyne, ester, anhydride, carbonate, urethane, carbonyl, epoxy, ether or acetal compound, or a mixture thereof.

28. The reaction facilitator of claim 25, 26 or 27 in the form of a complex.

29. A complex composition comprising the reaction facilitator as defined in claim 25 and a cyanuric halide of Formula V:

wherein X is as defined in claim 1.

30. A complex composition comprising the reaction facilitator as defined in claim 25 and 2-halo-4,6-bisaryl-1,3,5-triazine of Formula III:

wherein X, Ar1 and Ar2 are as defined in claim 1.

31. A process for synthesizing a triazine compound of Formula III:

wherein X is a halogen and Ar1 and Ar2 are the same or different and each is a radical of a compound of Formula II:

wherein R6, R7, R8, R9, and R10 are the same or different and each is hydrogen, halogen, alkyl of 1 to 24 carbon atoms, haloalkyl of 1 to 24 carbon atoms, aryl of 6 to 24 carbon atoms, alkenyl of 2 to 24 carbon atoms, acyl of 1 to 24 carbon atoms, aralkyl of 7 to 24 carbon atoms, aracyl of 6 to 24 carbon atoms, OR, NRR', CONRR', OCOR, CN, SR, SO2R, SO3H, SO3M, wherein M is an alkali metal, R and R' are the same or different and each is hydrogen, alkyl of 1 to 24 carbon atoms, haloalkyl of 1 to 24 carbon atoms, aryl of 6 to 24 carbon atoms, alkenyl of 2 to 24 carbon atoms, acyl of 1 to 24 carbon atoms, cycloalkyl of 5 to 24 carbon atoms, cycloacyl of 5 to 24 carbon atoms, aralkyl of 7 to 24 carbon atoms, or aracyl of 6 to 24 carbon atoms, and optionally with either of R6 and R7, R7 and R8, R8 and R9, or R9 and R10, taken together being a part of a saturated or unsaturated fused carbocyclic ring optionally containing O, N, or S
atoms in the ring, which comprises:

reacting a cyanuric halide of the Formula V:
wherein each X is independently a halide, with at least one compound of Formula II with the reaction being conducted in the presence of a reaction facilitator comprising sufficient amounts of at least one Lewis acid and at least one reaction promoter chosen from an acid, base, water, alcohol, aliphatic halide, halide salt, acid halide, halogen, alkene, alkyne, ester, anhydride, carbonate, urethane, carbonyl, epoxy, ether, acetal compounds, and mixtures thereof, and is present in an amount of about 0.01 to 5 mol equivalent to the cyanuric halide for a sufficient time at a suitable temperature and pressure, in the presence of at least one solvent, to produce a triazine compound of Formula III, with the proviso that said reaction promoter is different from the compound of Formula II.

32. The process of any one of claims 1 to 23 and 31 wherein in the Formula V, each X is independently fluorine, chlorine, bromine or iodine.

33. The process of any one of claims 1 to 22, 24 and 31 wherein in the Formula III, X is fluorine, chlorine, bromine or iodine.