UNSATURATED (METH)ACRYLATE ESTERS CONTAINING EPOXIDIZED CYCLIC GROUPS AND PROCESS FOR PREPARING

摘要

A process of making compounds of formula (I), wherein Z is an unsubstituted or substituted n-valent cyclic moiety bearing at least one endocyclic oxirane group; Y is O, S, NH, (Ia) or (Ib); R<2> is a divalent linking group; X is O, S or NH; R<1> is H or (C1-C6) alkyl; and n is an integer from 1 to 6, Z being mono- to hexavalent respectively, it being possible for -Y-R<2> to represent a single bond, comprises reacting a compound of formula (II), wherein Z<1> is a cyclic moiety bearing at least one endocyclic C=C group; and Y, R<2>, X, R<1> and n are as defined above with hydrogen peroxide in the presence of (a) tungstic acid or tungsten oxide or molybdic acid or a molybdenum oxide; (b) phosphoric acid or a salt thereof; and (c) at least one phase transfer catalyst.