Immobilization of chiral phosphine ligands on silica gel by means of the allylsilane method and their use for catalytic asymmetric reactions
作者:Kazuko Aoki、Toyoshi Shimada、Tamio Hayashi
DOI:10.1016/j.tetasy.2004.03.044
日期:2004.6
Three chiral phosphine ligands containing an allylsilyl group at the terminus of the side chain were prepared and immobilized on a silica gel surface by use of the allylsilane modification method. The silica-supported chiral phosphine ligands were used for rhodium-catalyzed hydrogenation and palladium-catalyzedallylicalkylation and showed high enantioselectivity.