New chiral phosphinopyrrolidine compounds and their use for asymetric synthesis of optically active compounds
申请人:Achiwa, Kazuo
公开号:EP0251164A2
公开(公告)日:1988-01-07
New chiral phosphinopyrrolidine compounds of the general formula:
or
wherein R1 is a hydrogen atom, -COR, -COOR, -CONHR or -SO2R where R is an alkyl or aryl group, R2 and R3 each represents independently an aryl group which may have a substituent or substituents, and RA and R5 each represents independently an aliphatic or cycloaliphatic hydrocarbyl group which may have a substituent or substituents, as well as the use of these compound as ligand for a metal complex catalyst for asymmetric synthesis or optically active compounds. The new chiral phosphinopyrrolidine compounds are useful ligands which attain both of high optical yield and high reaction efficiency in catalytic asymmetric reduction.
通式如下的新型手性膦基吡咯烷化合物
或
其中 R1 是氢原子、-COR、-COOR、-CONHR 或 -SO2R 其中 R 是烷基或芳基,R2 和 R3 分别独立地代表芳基(可带有一个或多个取代基),RA 和 R5 分别独立地代表脂肪族或环脂族烃基(可带有一个或多个取代基)。新的手性膦基吡咯烷化合物是一种有用的配体,在催化不对称还原反应中可获得高光学产率和高反应效率。