Synthesis, structure and reactivity of cis-[PtL2(1-alkenyl)2] complexes

The synthesis and characterization of several new bis(1-alkenyl)platinum(II) complexes have been carried out. The structure of cis-[Pt(dppp)((CH2)6CHCH2)2] has been determined by X-ray crystallography. The stability and reactivity of the compounds, cis-[PtL2((CH2)nCHCH2)2] (n = 3 or 4 and L2 = 1,3-bis(diphenylphosphino)propane (dppp), 1,2-bis(diphenylphosphino)ethane (dppe), L = PPh3) is strongly dependent on the nature of ligand systems. It is found that the insertion of carbon monoxide into the metal–carbon bonds of the platinum alkenyl complexes is possible. Other reactions including transmetalation, intermolecular alkenyl migrations, oxidative addition of methyl iodide are described and the thermal decomposition of the bis(alkenyl) complexes are also reported.

Graphical abstractThe synthesis and characterization of several new bis(1-alkenyl)platinum(II) complexes have been carried out. The insertion of carbon monoxide into the metal–carbon bonds of the platinum alkenyl complexes and other reactions including transmetalation, intermolecular alkenyl migrations, and oxidative addition of methyl iodide are also described. The thermal decomposition studies of the bis(alkenyl) complexes are also reported.Figure optionsDownload full-size imageDownload as PowerPoint slide