Steric activation of chelate catalysts: efficient polyketone catalysts based on four-membered palladium(ii) diphosphine chelates
Abstract
Palladium(II) complexes of ligands of the type Ar2PCH2- PAr2 and Ar2PN(Me)PAr2 (Ar = ortho-substituted phenyl group) are very efficient catalysts for copolymerisation of CO and C2H4.