Preparation of carboxylic di-esters or acids

Details Preparation of carboxylic di-esters or acids Preparation of carboxylic di-esters or acids

C - Chemistry, Metallurgy

07

C

260/524.1, 260/5

C07C 55/02 (2006.01) C07C 51/14 (2006.01) C07C 61/00 (2006.01) C07C 67/58 (2006.01) C07C 69/44 (2006.01)

Patent

CA 1274538

A B S T R A C T PREPARATION OF CARBOXYLIC DI-ESTERS OR ACIDS A process for the carbonylation of a conjugated diene with CO and an alcohol or water in the presence of an aprotic solvent is carried out in the presence of a dissolved catalytic system prepared by combining a Pd(II) compound, at least 5 mol of a triarylphosphine per gram atom of Pd and at least 1 mol of HCl per gram atom of trivalent P.

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