Carbonylation of phenylplatinum(II) complexes containing bidentate ligands

Article abstract of DOI:10.1021/om00128a010

A series of complexes of the type [PtClPh(P Y)] (P Y = 1,2-bis(diphenylphosphino)ethane (dppe), 1-(diphenylphosphino)-2-(diphenylarsino)ethane (appe), 1,3-bis(diphenylphosphino)propane (dppp), 1-(diphenylphosphino)-2-(methylthio)ethane (PC₂S), or 1-(diphenylphosphino)-2-(dimethylamino)ethane (PC₂N)) has been prepared and the carbonylation reactions of these complexes investigated. The corresponding benzoyl complexes have been generated by an alternative route. No reaction of [PtClPh(P Y)] with CO takes place when P Y = dppe or appe, but carbonylation proceeds smoothly, albeit slowly, when P Y = dppp, PC₂S, or PC₂N. The reaction is most rapid for the dppp complex. These results are rationalized in terms of both dissociative and nondissociative reaction pathways.