Carbonylation studies of Pd-methyl complexes modified with 1,4-Cs-symmetrical diphosphine ligands

Neutral palladium methyl chloride 2a-d [PdCH3(PˆP′)Cl] and cationic palladium methyl acetonitrile mono-triflate 3a-d [PdCH3(PˆP′)(CH3CN)](CF3SO3) complexes were carbonylated. A mixture of isomers resulted after the carbonylation reaction.