Structure of [Pd{C5(CO2Me)4(CO2Me)C(CO2Me)Cl}{acac}] and the intermediacy of a σ-butadienyl complex in the PdII-induced trimerisation of dimethyl acetylenedicarboxylate
Abstract
The structure of the complex, [[graphic omitted] C(CO2Me)Cl}Cl]2, obtained from reaction of dimethyl acetylenedicarboxylate (dma) and Pd(PhCN)2Cl2, has been established spectroscopically and confirmed by X-ray analysis of the acetylacetonate; such complexes were also obtained by reaction of a σ-butadienyl complex with dma.