申请人:Zhang Xumu
公开号:US20060047128A1
公开(公告)日:2006-03-02
The present invention provides a chiral ligand, represented by a formula or its enantiomer:
X and X′ can be independently O, NH, NR, NCOR or S; each of Z
1
-Z
7
and Z
1
′-Z
7
′ can be independently H, alkyl, aryl, substituted alkyl, substituted aryl, alkoxyl, aryloxyl, nitro, amide, aryoxide, halide, hydroxyl, carboxylate, hetereoaryl, or a cyclic alkene, fused aryl, or cyclic ether group formed from any two adjacent Z groups or any two adjacent Z′ groups; Y and Y′ can be independently OH, OR, NH
2
, NHR, NR
2
, SH, PR
2
, OPR
2
, NHPR
2
, OP(OR)
2
, COOH, COOR, CONHR, or a linking group formed from Y and Y′ groups together. Processes of preparing these ligands, catalysts that employ them and methods of using the catalysts are also provided.
本发明提供了一个手性配体,由以下公式或其对映体表示:X和X'可以独立为O、NH、NR、NCOR或S;Z1-Z7和Z1'-Z7'中的每一个可以独立为H、烷基、芳基、取代烷基、取代芳基、烷氧基、芳氧基、硝基、酰胺、芳氧基、卤素、羟基、羧酸酯、杂环芳基,或由任意相邻的Z基或Z'基形成的环烯烃、融合芳基或环醚基;Y和Y'可以独立为OH、OR、NH2、NHR、NR2、SH、PR2、OPR2、NHPR2、OP(OR)2、COOH、COOR、CONHR,或由Y和Y'基共同形成的连接基。还提供了制备这些配体的方法、使用它们的催化剂以及使用催化剂的方法。