Asymmetrische katalysen XXXVI. Neue mehrzähnige liganden mit dem (S)-(α)-(2-Pyridyl)ethylrest; Rh-komplexe und enantioselektive hydrosilylierungen
作者:Henri Brumner、Heinrich Fisch
DOI:10.1016/0022-328x(87)85169-0
日期:1987.11
Starting from (S)-(−)-α-(2-pyridyl)ethylamine, 11 new multidentate ligands were prepared and characterized. Reaction with [Rh(cod)Cl]2 yielded the (cyclooctadiene)(imine)-RhI complexes (I–VII). The isolated complexes and the in-situ systems [Rh(cod)Cl]2/1–11 were used as enantioselective catalysts in the hydrosilylation of acetophenone with diphenylsilane. The resulting α-phenylethanol was found to