THE CHEMISTRY OF ORGANOBISMUTH REAGENTS PART XIII LIGAND COUPLING INDUCED BY Pd(0)

Article abstract of DOI:10.1016/S0040-4020(01)81427-7

Palladium zero converts triphenylbismuth quantitatively to diphenyl and metallic bismuth.many other derivatives of Bi(III) and Bi(V) are similarly transformed to diaryls in excellent yield.Similar reactions with triphenylantimony and with perphenyl lead derivatives suggest that number of non-transition metal elements should show similar behaviour.Acid chlorides also react under mild conditions with triphenylbismuth under catalysis by palladium(0) to furnish phenylketones in excellent yield (with respect to the triphenylbismuth).All three phenyls are transferred when a suitable excess of the acid chloride is used.Diaryl formation is a minor side reaction.