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New efficient P,N,O-tridentate ligands for Ru-catalyzed asymmetric transfer hydrogenation
被引:36
|作者:
Dai, HC
[1
]
Hu, XP
[1
]
Chen, HL
[1
]
Bai, CM
[1
]
Zheng, Z
[1
]
机构:
[1] Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
关键词:
STEREOSELECTIVE SYNTHESIS;
RUTHENIUM(II) COMPLEXES;
KETONES;
ALCOHOLS;
ACETOPHENONE;
DERIVATIVES;
D O I:
10.1016/S0957-4166(03)00320-3
中图分类号:
O61 [无机化学];
学科分类号:
070301 ;
081704 ;
摘要:
New chiral P,N,O Schiff base ligands derived from substituted salicylaldehyde and (R)-1-[(S)-2-(diphenylphosphino)ferrocenyl]ethylamine[(R,S-Fc)-PPFNH2] have been prepared and employed in ruthenium catalyzed asymmetric transfer hydrogenation of simple ketones. Up to 94% e.e. with 99% conversion was obtained when the electron-withdrawing 3,5-dinitro substituted ligand 2f was used. (C) 2003 Elsevier Science Ltd. All rights reserved.
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页码:1467 / 1472
页数:6
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