申请人:Massachusetts Institute of Technology
公开号:US05516929A1
公开(公告)日:1996-05-14
Osmium-catalyzed methods of addition to an olefin are discussed. In the method of asymmetric dihydroxylation of the present invention, an olefin, a chiral ligand, an organic solvent, water, an oxidant and an osmium-containing compound are combined. In the method of asymmetric oxyamination of the present invention, an olefin, a chiral ligand, an organic solvent, water, a metallochloramine derivative, an osmium-containing compound and, optionally, a tetraalkyl ammonium compound are combined. In the method of asymmetric diamination of the present invention, an olefin, a chiral ligand, an organic solvent, a metallo-chloramine derivative, an amine and an osmium-containing compound are combined. In one embodiment, an olefin, a chiral ligand which is a polymeric dihydroquinidine derivative or a dihydroquinine derivative, acetone, water, a base, an oxidant and osmium tetroxide are combined to effect asymmetric dihydroxylation of the olefin.
本文讨论了奥兹米催化的烯烃加成方法。在本发明的不对称双羟基化方法中,将烯烃、手性
配体、有机溶剂、
水、氧化剂和含奥兹米的化合物混合。在本发明的不对称氧胺化方法中,将烯烃、手性
配体、有机溶剂、
水、
金属
氯胺衍
生物、含奥兹米的化合物和可选的四烷基
铵化合物混合。在本发明的不对称二胺化方法中,将烯烃、手性
配体、有机溶剂、
金属
氯胺衍
生物、胺和含奥兹米的化合物混合。在一种实施方式中,将烯烃、聚合二羟基
喹啉衍
生物或二
喹啉衍
生物的手性
配体、
丙酮、
水、碱、氧化剂和四氧化二
锇混合,以实现烯烃的不对称双羟基化。