Process for production of methacrylic acid esters

摘要

A method for producing α-, β-unsaturated carboxylic acid esters in high yield from reaction by-product streams via the catalytic conversion of the by-products to additional α-, β-unsaturated carboxylic acid ester product. The catalyst comprises cesium, and phosphorous as a promoter, on a porous support.

主权项

1. A process comprising contacting a C1-C12 alkyl α-hydroxyisobutyrate, a C1-C12 alkyl β-C1-C12 alkoxyisobutyrate and a C1-C12 alkyl alcohol with a supported catalyst, the catalyst comprising cesium and a phosphate promoter, under reaction conditions sufficient to convert the C1-C12 alkyl α-hydroxyisobutyrate and C1-C12 alkyl β-C1-C12 alkoxyisobutyrate to a C1-C12 alkyl methacrylate.