Insertion of Imines into Palladium-Acyl Bonds: Towards Metal-Catalyzed Alternating Copolymerization of Imines with Carbon Monoxide To Form Polypeptides
From a methyl ligand, CO, and an imine a chelating amide ligand is formed by insertion of the C=N bond into the metal-acyl bond in cationic palladium(II) complexes (see reaction below). The cationic acylpalladium complexes are obtained from CO and readily accessible palladium starting materials. LL=diphosphane ligand.