| About 34 results  | www.google.com/patents/EP1293493A3?cl=en Die Erfindung betrifft ein Verfahren zur Herstellung von optisch reinen
Acetylendiolen der Formeln RI und SI The invention relates to a method ... |
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 | www.google.com/patents/WO2004048323A8?cl=en The invention relates to a method for producing carotenoids. Said method is
characterised in that a dialkoxy dialdehyde of general formula I, ... |
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 | www.google.com/patents/US7378558 A process for preparing carotenoids, in which the process includes reacting a
dialkoxy dialdehyde in a double Wittig condensation with a ... |
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 | www.google.com/patents/US5654488 A process for the preparation of astaxanthin of the formula I ##STR4## by
reaction of 2 mol of the triphenylphosphonium salt of the general ... |
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 | www.google.com/patents/US8492579 The present invention relates to an improved method for producing all-E
astaxanthin dimethyldisuccinate ... |
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 | www.google.com/patents/US20070004925 The invention relates to a process for preparing phytofluene of the formula I,
where a) a phosphonium salt of the formula II is condensed with an ... |
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 | www.google.com/patents/US7045641 A process for preparing compounds of the formula I is described and entails
converting a compound of the formula II by Wittig or Wittig-Horner ... |
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 | www.google.com/patents/EP1680383A2?cl=fr L'invention concerne un procédé servant à produire du phytofluène de formule (I)
. Selon ce procédé, a) on condense en un acétal de formule ... |
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 | www.google.com/patents/US6610892 in which the substituents R1 and R2 may, independently of one another, be C1-C
8-alkyl or, together with the oxygen atoms and the carbon ... |
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 | www.google.com/patents/EP0733619B1?cl=en A. the starting compounds of the formulae II and III are suspended in methanol,
ethanol or a mixture of methanol or ethanol with water, and the suspension is ... |
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