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Publication numberUST909012 I4
Publication typeGrant
Publication dateApr 3, 1973
Filing dateJul 28, 1972
Priority dateJul 28, 1972
Publication numberUS T909012 I4, US T909012I4, US-I4-T909012, UST909012 I4, UST909012I4
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Defensive publication
US T909012 I4
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Description  (OCR text may contain errors)

DEFENSIVE PUBLICATION UNITED STATES PATENT OFFICE Published at the request of the applicant or owner in accordance with the Notice of Dec. 16, 1969, 869 0.6. 687. The abstracts of Defensive Publication applications are identified by distinctly numbered series and are arranged chronologically. The heading of each abstract indicates the number of pages of specification, including claims and sheets of drawings contained in the application as originally filed. The files of these applications are available to the public for inspection and reproduction may be purchased for 30 cents a sheet.

Defensive Publication applications have not been examined as to the merits of alleged invention. The Patent Ofiice makes no assertion as to the novelty of the disclosed subject matter.

PUBLISHED APRIL 3, 1973 T909,012 NOVEL 2,2 DISUBSTlTUTED- i-(l,l-DIALKYL-Z- ETHANOL)-1,3-DIOXOLANES AND PROCESS FOR THEIR PRODUCTION Anthony W. McCollum, 404 Hillmont, Longview, Tex. 75601 Filed July 28, 1972, Ser. No. 275,998

Int. Cl. C07d 13/04 US. Cl. 260340.9 No Drawing. 12 Pages Specification Water insoluble 2,2-disubstituted 4-(1,d-dialkyl-Lethanol)-1,3-dioxo1ane compounds having the formula wherein each R is selected from the group consisting of hydrogen or a lower straight or branched chain alkyl of 1 to 4 carbons, and each R is selected from the group consisting of straight or branched chain alkyl of 1 to 10' carbon atoms, substituted or unsubstituted phenyl, or CH=CH are prepared by the process which comprises reacting a triol compound having the formula wherein each R is as defined hereinabove,

at a temperature of between about 40 C. and about 150 C. in the presence of an acid catalyst such as p-toluenesulfonic acid with at least an equal molar amount of a carbonyl compound having the formula 0 Iu-ii-Rl wherein each R is as defined hereinabove.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US5391785 *Jul 15, 1992Feb 21, 1995La Jolla Pharmaceutial CompanyPartially protected alcohols, used to make phosphoramidites for modifying oligonucleotides
US5786512 *Nov 8, 1994Jul 28, 1998Lajolla Pharmaceutical CompanyHydroxyhexyl disulfides
Classifications
U.S. Classification549/453
International ClassificationC07D317/20
Cooperative ClassificationC07D317/20
European ClassificationC07D317/20