Patent ID: 7371705
Filing Date: 2008-05-13
Classification: B01J,C07C,C07F

Abstract:
1. A catalyst system capable of catalysing the carbonylation of an olefinally unsaturated compound, which catalyst system is obtainable by combining: (a) a metal of Group VIB or Group VIIIB or a compound thereof: and (b) a bidentate phosphine 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 R Ad each independently represent an optionally substituted adamantyl radical bonded to the phosphorous atom via any one of its tertiary carbon atoms, the said optional substitution being by one or more substituents selected from hydrogen, lower alkyl, halo, cyano, nitro, OR R S & U=0, 1 or 2 provided that S+U≧1; T & V=0, 1 or 2 provided that T+V≦3; W & X=0, 1 or 2; Q