申请人:Massachusetts Institute of Technology
公开号:US05126494A1
公开(公告)日:1992-06-30
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 metallo-chloramine 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.
铂催化的烯烃加成方法进行了讨论。在本发明的不对称二羟基化方法中,将烯烃、手性配体、有机溶剂、水、氧化剂和含铂的化合物结合在一起。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、含铂的化合物和可选的四烷基铵化合物结合在一起。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、胺和含铂的化合物结合在一起。在一种实施例中,将烯烃、聚合二氢喹啉衍生物或二氢奎宁衍生物的手性配体、丙酮、水、碱、氧化剂和四氧化铂结合在一起,以实现烯烃的不对称二羟基化。