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.
本发明涉及一种新颖的
钌化合物,其
化学式为(Ia)和(Ib),其中R1和基团在此定义。还公开了一种使用这些新颖的
钌化合物作为催化剂,对
酮类进行不对称氢化和转移氢化的方法,具有高反应活性和优异的选择性。