The present invention is based around the discoveries that novel ligands of formula (4) and the opposite enantiomers thereof, (i) have utility as components of catalysts for asymmetric hydrogenation and (ii) are readily accessible by an efficient general synthetic route. In particular, ruthenium-diamine complexes of the ligands (4) are highly active and selective catalysts for the asymmetric hydrogenation of ketones.
本发明基于发现,公式(4)的新型
配体及其对映异构体具有以下用途:(i)作为不对称氢化反应催化剂的组分,(ii)可通过高效的通用合成途径轻松获得。特别是,
配体(4)的
铼-二胺配合物是高活性和选择性的酮的不对称氢化反应催化剂。