Palladium-Diphosphite Catalysts for the Asymmetric Allylic Substitution Reactions
作者:Montserrat Diéguez、Oscar Pàmies、Carmen Claver
DOI:10.1021/jo0480904
日期:2005.4.1
We have designed a series of diphosphiteligands to study the effect of the backbone, the size of the chelate ring, and the substituents of the biphenyl moieties and to determine the scope of this type of ligand in the Pd-catalyzedasymmetricsubstitutionreactions of different types of substrates. Good-to-excellent activities and enantioselectivities have been obtained for disubstituted linear substrate