PROCESS FOR PRODUCING GLYCOSIDES OF ACRYLATE DERIVATIVES EMPLOYING SACCHARIDES AND GLYCOSIDASES

摘要

Ethylenically unsaturated glycosides of formula (I) wherein n, A, X, R³ and R⁴ have the meanings given in the description are produced by reacting an ethylenically unsaturated alcohol of formula (II) with a saccharide of formula (III) in the presence of a glycosidase, such as an amylase, cellulase, glucosidase or galactosidase, (i) at a molar ratio of ethylenically unsaturated alcohol of formula II to saccharide of formula (III) of from 2:1 to 30:1; (ii) in the presence of a solvent mixture of water and a water miscible organic solvent that is no primary or secondary alcohol, such as acetone, acetonitrile, t-pentanol, t-butanol, 1,4-dioxane and tetrahydrofuran, at a weight ratio of water to organic solvent of from 0.1 :1 to 9:1; and (iii) at a weight ratio of solvent mixture to saccharide of from 3:1 to 30:1.