Process for synthesis of (meth) acrylic acid esters by transesterification in the presence of mixed catalysts containing alkali metal cyanate or thiocyanate

摘要

Acrylic or methacrylic acid esters may be efficiently prepared by the transesterification of a C1 to C4 alcohol ester of acrylic or methacrylic acid and a different alcohol in the presence of a mixture of a) an alkali metal cyanate or alkali metal thiocyanate, and b) an alkaline earth metal oxide, an alkaline earth metal hydroxide or an alkali metal halide.