Patent ID: 7265240
Filing Date: 2007-09-04
Classification: B01J,C07C,C07F

Abstract:
1. A process for the carbonylation of C 3 -C 20 ethylenically unsaturated compounds which process comprises reacting said C 3 -C 20 ethylenically unsaturated compound with carbon monoxide in the presence of a source of hydroxyl groups and of a catalyst system, the catalyst system obtainable by combining: (a) a metal of Group VIII or a compound thereof: and (b) a bidentate phosphine, stibine or arsine of general formula (I) wherein: Ar is a bridging group comprising an optionally substituted aryl moiety to which the phosphorus atoms are linked on available adjacent carbon atoms; A and B each independently represent lower alkylene; K, D, E and Z are substituents of the aryl moiety (Ar) and each independently represent hydrogen, lower alkyl, aryl, Het, halo, cyano, nitro, OR NR R R each of Q wherein the carbonylation reaction is carried out at a temperature of between −30° C. to 49° C. and under a CO partial pressure of less than 30×10