Reusable polymer-supported palladium catalysts: An alternative to tetrakis(triphenylphosphine)palladium in the suzuki cross-coupling reaction

Article abstract of DOI:10.1016/S0040-4039(98)00757-6

The Suzuki cross-coupling reaction of a boronic acid and a bromoaromatic requires palldium catalysis. Almost identical yields were obtained in the usual conditions, with 30 mequiv. of Pd(PPh₃)₄, and with 2 mequiv of a polymer-supported catalyst, which was easily prepared in two steps from Merrified polymer. Recovery and reuse of the catalyst is easy, and only 0.60% of the initial amount of palladium is lost during a reaction.