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A convenient method of transesterification under neutral conditions

โœ Scribed by S. Bittner; Z. Barneis; S. Felix

Publisher
Elsevier Science
Year
1975
Tongue
French
Weight
171 KB
Volume
16
Category
Article
ISSN
0040-4039

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โœฆ Synopsis

In continuation of our studies [1,21 on the chemical properties of the labile adduct (11, formed from triphenylphosphine and diethylazodicarboxylate, we reacted this quasi-l,3 salt with one equivalent of diethylmalonate in methanol at 0.C. Gas chromatographic follow up of the reaction showed disappearance of the ester peak within 1.5 hr and the appearance of two new

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## Abstru: Lipases from Candida cylindracea and from Pseudomonas fluofescens efficiently catalyse the benzyl to alkyl transesterification in organic solvents under mild conditions in nearly quantitative yields.