申请人:Mashima Kazushi
公开号:US20090036696A1
公开(公告)日:2009-02-05
The present invention has as its object to provide an iridium complex represented by the general formula:
[(l r H L
1
L
2
)
2
(μ-X
1
)(μ-X
2
)(μ-X
3
)]X
4
(1)
(wherein L
1
and L
2
may be the same or different and each represent a monodendate neutral ligand, or each cooperate with the other to form a bidendate neutral ligand; X
1
, X
2
and X
3
may be the same or different, and each represent a halogen atom; and X
4
is a counter-anion). Also, the present invention provides a novel catalyst which can achieve excellent performance as a catalyst for asymmetric synthesis, especially asymmetric hydrogenation, in terms of chemical selectivity, enantioselectivity and catalytic activity, and the like.
本发明的目的是提供一种铱配合物,其通式表示为:[(l r H L1L2)2(μ-X1)(μ-X2)(μ-X3)]X4(1)(其中L1和L2可以相同也可以不同,每个代表一种单齿中性配体,或者合作形成一种双齿中性配体;X1、X2和X3可以相同也可以不同,每个代表一种卤素原子;X4是一个反离子)。此外,本发明提供了一种新型催化剂,可以在化学选择性、对映选择性和催化活性等方面实现出色的性能,特别是作为不对称合成的催化剂,尤其是不对称氢化反应。