Reductive Elimination Products Research Articles

PREPARATION OF ACYL(CARBOXYLATO)NICKEL AND -PALLADIUM COMPLEXES M(COR)(OCOR’)L2 (M = Ni, Pd) AND REVERSIBLE REDUCTIVE ELIMINATION OF CARBOXYLIC ANHYDRIDES, RCOOCOR’

Abstract Acyl(carboxylato)nickel(II) and -palladium(II) complexes, M(COR)(OCOR’)L2 2 are prepared by 1 : 1 reactions of MR(OCOR’)L2 1 with CO at −78°, whereas similar reactions in the presence of excess CO at room temperature afford the reductive elimination products, RCOOCOR’. Acid anhydrides add oxidatively to an Ni(0)-complex to afford a complex of the type 2.