Catalyst compositions for the preparation of polymers of carbon monoxide with olefinically unsaturated compounds.

摘要

Catalyst compositions, based upon a Group VIII metal and a phosphorus bidentate ligand of the general formula R<1>R<2>P-R<5>-PR<3>R<4> in which R<1> to R<4> represent identical or different optionally polar substituted hydrocarbyl groups and R<5> is a divalent bridging group of which the bridge connecting the two phosphorus atoms consists of three carbon atoms, the central carbon atom of the bridge carrying an alkyl group and a hydroxyl group as substituents.