Atropos but achiral tris(phosphanyl)biphenyl ligands for RU-catalyzed asymmetric hydrogenation

被引:38
作者
Aikawa, K [1 ]
Mikami, K [1 ]
机构
[1] Tokyo Inst Technol, Grad Sch Sci & Technol, Dept Appl Chem, Meguro Ku, Tokyo 1528552, Japan
关键词
atropisomerism; chirality; hydrogenation; phosphane ligands; ruthenium;
D O I
10.1002/anie.200352277
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Axial chirality is generated upon complexation of the novel triphos ligand with a metal. In the presence of the diamine dm-dabn, isomerization to the enantiopure triphos-Ru complex was observed. The dm-dabn ligand of the Ru complex exchanges with dpen at room temperature without racemization. dm-dabn = 3,3′-dimethyl-2,2′-diamino-1,1′-binaphthyl, dpen = 1,2-diphenylethylenediamine.
引用
收藏
页码:5455 / 5458
页数:4
相关论文
共 32 条
[1]  
[Anonymous], 1998, TRANSITION METALS OR
[2]   Asymmetric catalysis with the normally unresolvable, conformationally dynamic 2,2′-bis(diphenylphosphino)-1,1′-biphenyl (biphep) [J].
Becker, JJ ;
White, PS ;
Gagné, MR .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2001, 123 (38) :9478-9479
[3]  
Berrisford D.J., 1995, ANGEW CHEM, V107, P1159
[4]   LIGAND-ACCELERATED CATALYSIS [J].
BERRISFORD, DJ ;
BOLM, C ;
SHARPLESS, KB .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH, 1995, 34 (10) :1059-1070
[5]  
BOSNICH B, 1986, ASYMMETRIC CATALYSIS
[6]  
Brunner H, 1993, HDB ENANTIOSELECTIVE, V1
[7]  
Eliel E. L., 1994, STEREOCHEMISTRY ORGA
[8]  
FREUDENBERG H, 1933, STEREOCHEMIE, P803
[9]  
Jacobsen E. N., 1999, COMPREHENSIVE ASYMME, V1- 3
[10]  
Kagan H. B., 1992, COMPREHENSIVE ORGANI, V8