Synthesis of a New Chiral Bisphospholane Ligand for the Rh(I)-Catalyzed Enantioselective Hydrogenation of Isomeric β-Acylamido Acrylates
作者:Jens Holz、Axel Monsees、Haijun Jiao、Jinsong You、Igor V. Komarov、Christine Fischer、Karlheinz Drauz、Armin Börner
DOI:10.1021/jo020453h
日期:2003.3.1
The highly stereoselective synthesis of a chiral silylphospholane has been described, which can be advantageously used as a building block under base-free conditions for the construction of diphosphines related to DuPHOS. The utility of silylphospholane is shown in the synthesis of a new bisphospholane ligand 1 (MalPHOS), which is characterized by a maleic anhydride backbone. The ligand forms with