Influence of the catalyst on the Pd0-mediated reactions of BrZnCH(CH3)COOtBu with vinyl and aryl triflates

Article abstract of DOI:10.1016/0022-328X(89)87059-7

A series of Pd^II complexes containing various Group V-donors were reduced with diisobutylaluminum hydride and the products screened as potential catalysts for the coupling of representative vinyl- and aryl-trifluoromethanesulfonate substrates to the Reformatsky reagent BrZnCH(CH3)COO^tC4H9.The desired coupling product was obtained only with "reduced" dichlorobis(1,1-diphenylphosphino)ferrocene as catalys and 2-naphthyl triflate as the substrate.These results are discussed in terms of the structural features of the reactants and catalyst.