Method of preparation of acetate methyl styrene-b-acrylate from formate to methyl styrene-b-acrylate

摘要

Said process is characterized in that the methyl formate is converted at a temperature of 170 to 220 DEG C in the presence of (a) a rhodium-based catalyst, (b) an iodated promoter chosen from the following: phosphonium or ammonium alkaline or alkaline-earth iodides and mixtures of homopolar iodine compounds with an added phosphine or tertiary amine, (c) a solvent which is a cyclic N-alkyl amide.