New chiral phosphinopyrrolidine compounds and their use for asymmetric synthesis of optically active compounds
申请人:FUJI YAKUHIN KOGYO KABUSHIKI KAISHA
公开号:EP0336123A2
公开(公告)日:1989-10-11
New chiral phosphinopyrrolidine compounds of the general formula:
wherein R¹ is hydrogen or -COA¹, -COOA², -CONHA³, -SO₂A⁴ or -PO(A⁵)₂, A¹, A², A³, A⁴, and A⁵ each represents independently alkyl or pharyl, R² is phenyl, di(lower-alkyl)aminophenyl, lower-alkoxyphenyl or 3,5-dimethyl-4-methoxyphenyl, and R³ is phenyl, lower-alkylphenyl, di(lower-alkyl)aminophenyl, lower-alkoxyphenyl or 3,5-dimethyl-4-methoxyphenyl, with the proviso that R² and R³ may not simultaneously be phenyl, p-di(lower-alkyl)- aminophenyl or p-lower-alkoxyphenyl, as well as the use of these compounds as ligand for a metal complex catalyst for asymmetric synthesis of 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:
其中 R¹ 是氢或 -COA¹、-COOA²、-CONHA³、-SO₂A⁴ 或 -PO(A⁵)₂,A¹、A²、A³、A⁴ 和 A⁵ 各自独立地代表烷基或芳基、R² 是苯基、二(低级烷基)氨基苯基、低级烷氧基苯基或 3,5-二甲基-4-甲氧基苯基,而 R³ 是苯基、低级烷基苯基、二(低级烷基)氨基苯基、低级烷氧基苯基或 3,5-二甲基-4-甲氧基苯基、这些化合物还可用作金属络合物催化剂的配体,用于光学活性化合物的不对称合成。新的手性磷吡咯烷化合物是有用的配体,在催化不对称还原反应中既能获得高光学产率,又能获得高反应效率。