Vinylation reaction

C - Chemistry – Metallurgy – 07 – D

Patent

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C07D 207/263 (2006.01) B01J 31/06 (2006.01) B01J 31/12 (2006.01) C07D 207/267 (2006.01)

Patent

CA 1175800

ABSTRACT The present invention relates to an improved method for the vinylation of pyrrolidone with acetylene in the presence of an alkali metal salt of said pyrrolidone as a catalyst, by the addition of between about 0.2 and about 8 weitht-%, based on total feed, of a polyoxyalkylene glycol; a polyoxyalkylene phenol, optionally substituted with an alkyl group; a polyoxyalkylene ether or mixtures thereof; said polyoxyalkylene compound having a number average molecular weight of between about 175 and 2,000 and containing between 4 and 40 oxyethylene and/or oxypropylene units. The invention also pertains to a novel coacting catalyst composition for use in vinylation reactions comprising said alkali metal salt of said pyrrolidone in admixture with said polyoxyalkylene compound.

397210

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