Oxidative carbonylation of organic compounds by carbon monoxide and transition-metal salt catalysts

Abstract

1. The yield of methyl acrylate during oxidative carbonylation of ethylene in the presence of chlorides of palladium and copper sharply increased with the addition of LiCl and during the increase of the partial pressure of carbon monoxide in the gaseous mixture. 2. Highly effective as a catalyst, methanol served simultaneously as the reagent and formed methyl acrylate in yields approaching 73%. 3. In oxidative carbonylation of methanol, the system MnCl2-CuCl2-LiCl was highly active. At 180°, 40 atm carbon monoxide pressure, and 22.5 atm oxygen the yield of dimethyl carbonate approached 89%.