| abstract |
(A) a palladium source, and (b) Formula II R 1 R 2> P 1 -R 3 m -R-R 4 n -P 2 <R 5 R 6 (II) (Wherein P 1 and P 2 represent a phosphorus atom, and R 1 , R 2 , R 5 and R 6 contain a tertiary carbon atom through which each group is bonded to the phosphorus atom. Each independently represents an optionally substituted organic group, R 3 and R 4 independently represent the same or different optionally substituted methylene groups, and R is a divalent An organic group containing a bridging group C 1 -C 2 and through which R is bonded to R 3 and R 4 , m and n independently represent a natural number in the range of 0 to 4; Rotation around the bond between carbon atoms C 1 and C 2 is limited at temperatures in the range of 0 ° C. to 250 ° C., and from atoms in the direction of P 1 bonded directly to C 1 , C 2 and C 1 three surfaces and C 1 atomic arrangement is occupied, directly binding to the C 2 and C 2 comprising Dihedral angle between the three atomic arrangement occupies a surface consisting of an atom in the direction of P 2 that is bidentate diphosphine ligand is) in the range of 0 to 120 ° and, (C) A process for carbonylation of a conjugated diene comprising reacting a conjugated diene with a co-reactant having carbon monoxide and a mobile hydrogen atom in the presence of a catalyst system comprising an anion source. |