Process for preparing sugar acetonides

The present invention relates to a process for preparing sugar acetonides such as 1,2:5,6-di-O-isopropylidene- alpha -D-glucofuranose by reacting the corresponding sugar, for example D-(+)-glucose, with acetone in the presence of a Lewis acid and of a carboxylic acid derivative of the general formul...

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Bibliographic Details
Main Authors FRANZ DIETRICH KLINGLER, HEINRICH SCHNEIDER, RAINER SOBOTTA
Format Patent
LanguageEnglish
Published 14.10.1998
Edition6
Subjects
APPARATUS THEREFOR
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
DERIVATIVES THEREOF
GENERAL METHODS OF ORGANIC CHEMISTRY
METALLURGY
NUCLEIC ACIDS
NUCLEOSIDES
NUCLEOTIDES
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SUGARS
THEIR RELEVANT APPARATUS
TRANSPORTING
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Summary:The present invention relates to a process for preparing sugar acetonides such as 1,2:5,6-di-O-isopropylidene- alpha -D-glucofuranose by reacting the corresponding sugar, for example D-(+)-glucose, with acetone in the presence of a Lewis acid and of a carboxylic acid derivative of the general formula in which X comprises a leaving group which can be replaced by a hydroxyl group.
Bibliography:Application Number: CN19941015154