APPLICATION OF THE IRIDIUM COMPLEX IN ASYMMETRIC CATALYTIC HYDROGENATION FOR UNSATURATED CARBOXYLIC ACID
申请人:Zhejiang Jiuzhou Pharmaceutical Co., Ltd.
公开号:EP2275398A1
公开(公告)日:2011-01-19
The present invention relates to a preparation method of carboxylic acids with optical activity, particularly, publishes that very useful chiral carboxylic acids can be obtained by the asymmetric catalytic hydrogenation of tri-substituted α,β-unsaturated carboxylic acids, with the complexes of the chiral phosphor nitrogen ligands and iridium used as the catalysts which show high activity and enantioselectivity (up to 99.8% ee), thus provides a more efficient method with higher enantioselectivity for asymmetric catalytic hydrogenation of chiral carboxylic acid-like compounds, and has important application value to asymmetric hydrogenation of chiral carboxylic acids.
本发明涉及一种具有光学活性的羧酸的制备方法,特别是发表了通过三取代α,β-不饱和羧酸的不对称催化加氢可以得到非常有用的手性羧酸,手性磷氮配体和铱的配合物作为催化剂,显示出很高的活性和对映选择性(高达99.8% ee),从而为手性羧酸类化合物的不对称催化加氢提供了一种更高效、对映选择性更高的方法,对手性羧酸的不对称加氢具有重要的应用价值。