Monophosphine compound, transition metal complex thereof and production method of optically active compound using the complex as asymmetric catalyst
申请人:Carreira M. Erick
公开号:US20050277772A1
公开(公告)日:2005-12-15
The present invention provides a compound represented by the formula (I):
wherein ring A is void or a benzene ring optionally having substituent(s), R
1
and R
2
are each independently a phenyl group optionally having substituent(s), a cyclohexyl group and the like, R
3
and R
4
are each independently a hydrogen atom, a halogen atom, a lower alkyl group, a lower alkoxy group and the like, and X is a residue represented by —OR
5
or —NHR
6
wherein R
5
and R
6
are a lower alkyl group optionally having substituent(s), an aralkyl group optionally having substituent(s) and the like, a asymmetric transition metal complex containing the compound as a ligand and a production method of optically active compound using the complex as an asymmetric catalyst.
本发明提供一种化合物,其表示为式(I):其中环A为空或是一种苯环,可选地具有取代基,R1和R2各自独立地为苯基,可选地具有取代基,环己基等,R3和R4各自独立地为氢原子,卤素原子,低碳基,低烷氧基等,X是由—OR5或—NHR6表示的残基,其中R5和R6是低碳基,可选地具有取代基,芳基烷基等,该化合物作为配体的不对称过渡金属复合物以及使用该复合物作为不对称催化剂的光学活性化合物的生产方法。