Synthesis of a New Class of Conformationally Rigid Phosphino-oxazolines: Highly Enantioselective Ligands for Ir-Catalyzed Asymmetric Hydrogenation
作者:Duan Liu、Wenjun Tang、Xumu Zhang
DOI:10.1021/ol0362717
日期:2004.2.1
[reaction: see text] A new class of conformationally rigid phosphino-oxazoline ligands were synthesized from readily available enantiopure phenyl glycinol. Ir complexes with these ligands are air-stable and highly enantioselective catalysts for asymmetric hydrogenation of aryl alkenes and alpha,beta-unsaturated esters in up to 99% ee.