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A synthetic approach comprising several studied modifications was applied to the preparation of snglycerol 1,2-di-g-linolenate 3-palmitate (4). Thereby, a convenient and mild synthetic method was elaborated, affording 4 from 1,2-O-isopropylidene-sn-glycerol (1) in an average yield of 65 ± 75% and analytically acceptable purity.

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Almond β‐glucosidase was used to catalyze the synthesis of alkyl β‐d‐glucopyranosides 1b–3b starting from either d‐glucose (4) or phenyl‐β‐d‐glucopyranoside (5) and the racemic alcohols 1a–3a. The enzymic reactions were provided in different acetonitrile/water mixtures [9:1 (v/v) for the reverse hydrolysis, and 1:9 (v/v) for the transglycosylation]. Both enzymic reactions, that is, the reverse hydrolysis and the transglucosylation, are enantioselective processes. The enantiomeric purity of products 1b–2b of the enzymic reactions varied between 75 and 86% ee, the values of which were based on the analysis of the aglyconic parts (1c–2c) of the alkyl β‐d‐glucopyranoside molecules (1b–2b). Chirality 10:676–681, 1998. © 1998 Wiley‐Liss, Inc.

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