申请人:The Texas A & M University System
公开号:US06472533B1
公开(公告)日:2002-10-29
Novel phosphine oxazoline ligands of formula (I)
wherein
m is 1, 2, 3 or 4;
n, p, q, r are independently zero or 1 provided that at least one of n, p, q and r is 1;
X is O, S, Se, CH2, NH;
Y is N, P, As, S;
R is H; a straight, branched or cyclo alkyl optionally substituted by one or more groups independently selected from alkyl, aryl, halo, alkoxy, amine, phosphine, ether; aryl optionally substituted by one or more groups independently selected from alkyl, aryl, halo, alkoxy, amine, phosphine, ether; ferrocenyl; a thioalkyl group; a thioaryl group; or R is part of a polymeric structure, for example polyacrylic acid;
R1 to R13 are independently selected from H; a straight, branched or cyclo alkyl optionally substituted by one or more groups independently selected from alkyl, aryl, halo, alkoxy, amine, phosphine, ether; aryl optionally substituted by one or more groups independently selected from alkyl, aryl, halo, alkoxy, amine, phosphine, ether;
a process for the preparation thereof, metal complexes containing such ligands and the use of such complexes, or combinations of ligand with metal salts or complexes, as catalysts for asymmetric syntheses is disclosed.
公开了一种式为(I)的新型膦氧杂环配体,其中m为1、2、3或4;n、p、q、r独立地为0或1,但至少有一个n、p、q和r为1;X为O、S、Se、CH2、NH;Y为N、P、As、S;R为H;一种直链、支链或环烷基,可选地被一个或多个独立选择的基团取代,所述基团选自烷基、芳基、卤素、烷氧基、胺、膦、醚;芳基,可选地被一个或多个独立选择的基团取代,所述基团选自烷基、芳基、卤素、烷氧基、胺、膦、醚;二茂铁基;一种硫代烷基;一种硫代芳基;或R是聚丙烯酸等聚合物结构的一部分;R1至R13独立地选自H;一种直链、支链或环烷基,可选地被一个或多个独立选择的基团取代,所述基团选自烷基、芳基、卤素、烷氧基、胺、膦、醚;芳基,可选地被一个或多个独立选择的基团取代,所述基团选自烷基、芳基、卤素、烷氧基、胺、膦、醚;公开了制备该配体的方法、含有这种配体的金属配合物以及使用这种配合物或与金属盐或配合物的配体组合作为不对称合成催化剂的用途。