Selective lipase-catalyzed 6-O-acylation of alkyl α-D-glucopyranosides using functionalized ethyl esters
作者:A. T. J. W. de Goede、W. Benckhuijsen、F. van Rantwijk、L. Maat、H. van Bekkum
DOI:10.1002/recl.19931121102
日期:——
Alkylα-D-glucopyranosides were selectively converted into their 6-O-acyl esters by lipase-catalyzed transesterification with ethyl acrylate or ethyl 4-chlorobutanoate. Comparison of six lipase preparations showed large differences in activity and selectivity. The addition of zeolite CaA for selective adsorption of ethanol and water, exerted profound effects on conversion and regioselectivity of the