METHOD FOR PRODUCING GLYOXYLIC ACID ESTERS OR THE HYDRATES THEREOF

The invention relates to a method for producing glyoxylic acid esters from glyoxylic acid ester hemiacetals which a) are directly transesterified with an alcohol in the presence of a catalyst; or b) are firstly converted into the corresponding glyoxylic acid whole acetals and are then transesterifie...

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Bibliographic Details
Main Authors ZIMMERMANN, CURT, SAJTOS, ALEXANDER
Format Patent
LanguageEnglish
French
German
Published 10.10.2001
Edition7
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
APPARATUS THEREFOR
CHEMISTRY
GENERAL METHODS OF ORGANIC CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Summary:The invention relates to a method for producing glyoxylic acid esters from glyoxylic acid ester hemiacetals which a) are directly transesterified with an alcohol in the presence of a catalyst; or b) are firstly converted into the corresponding glyoxylic acid whole acetals and are then transesterified with an alcohol in the presence of a catalyst, whereupon after a) and b) the acetals are divided into the desired, free glyoxylic acid ester or the hydrate thereof.
Bibliography:Application Number: EP19990958166