Process for the selective epoxidation of compound (meth) acrylic unsaturated new (meth) acrylates obtained bifunctional.

摘要

PROCESS epoxidation of a compound (meth) acrylic UNSATURATED WHOSE formula is: wherein R SUB 1 is selected from alkyl HY C 1 -C SUB SUB 5; R SUB 2 is chosen H, alkyl and aryl; R SUB 3 is a radical alkylene or oxyalkylene, linear, branched or cyclic, having from 1 to 12 carbon atoms, MAY ONE OF carbon atoms R SUB 2, when it is an alkyl radical, BE ATTACHED TO ONE OF THE carbon atoms R SUB 3 to form a cycle; YA is selected from O, S, NH, and NR 4 SUB, SUB R 4 where an alkyl group in C 1 -C SUB SUB 12; PER SHARE OF HYDROGEN PEROXIDE ON COMPOUND STATEMENT (meth) acrylic unsaturated at a temperature ranging between 10 CY 50 C in the presence of at least one catalyst selected from molybdates and alkali metal PERTUNGSTATOS AND IN THE PRESENCE OF AT LEAST AN AGENT phase transfer.