Ruthenium catalysts and their use for asymmetric reduction of ketones
申请人:Haddad Nizar
公开号:US09029540B2
公开(公告)日:2015-05-12
Disclosed are novel ruthenium compounds of formula (Ia) and (Ib):
wherein R1 and the moiety are defined herein. Also disclosed is a process for using these novel ruthenium compounds as catalysts for asymmetric hydrogenation and transfer hydrogenation of ketones with high reactivities and excellent selectivities.