Process for selective epoxidation of unsaturated (meth)acrylic c

Details Process for selective epoxidation of unsaturated (meth)acrylic c Process for selective epoxidation of unsaturated (meth)acrylic c

1994-11-03

1996-01-02

Evans, Joseph E.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549553, 549557, 549561, C07D30112, C07D30316

Patent

active

054810124

ABSTRACT:
Process for the epoxidation of an unsaturated (meth)acrylic compound of formula: ##STR1## in which R.sub.1 is chosen from H and C.sub.1 -C.sub.5 -alkyl; R.sub.2 is chosen from H, alkyl and aryl; R.sub.3 is a straight-chain, branched or cyclic alkylene or oxyalkylene radical having from 1 to 12 carbon atoms, it being possible for one of the carbon atoms of R.sub.2, when the latter is an alkyl radical, to be linked to one of the carbon atoms of R.sub.3 to form a ring; and A is chosen from O, S, NH and NR.sub.4, R.sub.4 being a C.sub.1 -C.sub.12 -alkyl group; by the action of hydrogen peroxide on the said unsaturated (meth)acrylic compound, at a temperature of between 10.degree. C. and 50.degree. C., in the presence of at least one catalyst chosen from the alkali metal molybdates and the alkali metal pertungstates and in the presence of at least one phase transfer agent.

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