Abstract: Ethylenically unsaturated glycosides of the 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 glucosidase at a molar ratio of the alcohol to the saccharide of from 2:1 to 30:1 in the presence of a solvent mixture of water and 1,4-dioxane at a weight ratio of 0.1:1 to 9:1 and a weight ratio of solvent mixture to saccharide of from 3:1 to 30:1.

Abstract: Ethylenically unsaturated glycosides of formula I wherein Y, Y?, m, A, X, R3 and R4 have the meanings given in the description, are produced by reacting an ethylenically unsaturated compound of formula II with a polysaccharide comprising 10 or more monosaccharide units, such as starch, amylose, amylopectin, cellulose, in the presence of a glycosidase, such as an amylase, cellulase, glucosidase or and galactosidase, or a glycosyltransferase, such a cyclomaltodextrin glucanotransferase.

Abstract: 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.

Abstract: Ethylenically unsaturated glycosides of formula I wherein Y, Y?, m, A, X, R3 and R4 have the meanings given in the description, are produced by reacting an ethylenically unsaturated compound of formula II with a polysaccharide comprising 10 or more monosaccharide units, such as starch, amylose, amylopectin, cellulose, in the presence of a glycosidase, such as an amylase, cellulase, glucosidase or and galactosidase, or a glycosyltransferase, such a cyclomaltodextrin glucanotransferase.