EP1123915A1 — Process for producing alpha, beta-unsaturated carboxylic acid esters and catalyst for use in such process

USPTO Abstract

Economical and efficient processes for producing an α, β-unsaturated carboxylic acid heterocycle-inserted ester and an α,β-unsaturated carboxylic acid polyheteroalkylene ester as well as a catalyst suited for use in economically and efficiently producing an α,β-unsaturated carboxylic acid ester are provided. The invention provides (1) a process for producing an α,β-unsaturated carboxylic acid ester which comprises reacting an α,β-unsaturated carboxylic acid ester with a heterocyclic compound, (2) a process for producing an α,β-unsaturated carboxylic acid ester which comprises reacting an α,β-unsaturated carboxylic acid with a heterocyclic compound in the presence of a polymerization inhibitor and a metal oxide catalyst, and (3) a catalyst for the production of an α,β-unsaturated carboxylic acid ester    comprising a metal oxide.