An organometallic approach to synergistic effect in catalysis; synthesis and reactions of heterodinuclear organotransition metal complexes

摘要

Insertion of CO into Pd(or Pt)-C bond in (dpe)MeM-Co(CO)_4 (M=Pd(1),Pt(2)) is faster than that observed in PdMeCl(dpe).~13C labeling experiment reveals the preferential inserion of the coordinated CO in Co moiety into Pd-C bond to give corresponding acyl derivative.Structural determination of 1 indicates that one of the semi-bridging CO ligand has close contact with Pd.On the other hand, beta -hydrogen elimination reaction in (dpe)EtPt-MoCp(CO)_3 is also accelerated to give corresponding hydrido complex,(dpe)HPt-MoCp(CO)_3 and ethylene with retention of the configuration in comparison with PtEtCl(dpe).