Preparation of carboxylic acid esters

C - Chemistry – Metallurgy – 07 – C

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260/495.1

C07C 69/24 (2006.01)

Patent

CA 1172654

ABSTRACT OF THE DISCLOSURE A carboxylic acid ester, such as methyl propionate, is pre- pared by carbonylation of an olefin, such as ethylene in the presence of an alcohol by the use of a molybdenum-nickel or tungsten-nickel co-catalyst in the presence of a promoter com- prising an organo-phosphorus compound or an organo-nitrogen com- pound wherein the phosphorus and nitrogen are trivalent and in the presence of a halide. 1210

401852

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