Citation: Yu Ming Cui, Lai Lai Wang, Fuk Yee Kwong, Wei Sun. Asymmetric hydrogenation of aromatic ketones using new chiral-bridged diphosphine/diamine-Ru (Ⅱ) complexes[J]. Chinese Chemical Letters, ;2010, 21(12): 1403-1406. doi: 10.1016/j.cclet.2010.05.027 shu

Asymmetric hydrogenation of aromatic ketones using new chiral-bridged diphosphine/diamine-Ru (Ⅱ) complexes

a State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China;
b Open Laboratory of Chirotechnology of the Institute of Molecular Technology for Drug Discovery and Synthesis and Department of Applied Biology and Chemical technology, The Hong Kong Polytechnic University, Hong Kong, China;
c Graduate University of Chinese Academy of Sciences, Beijing 100039, China

Received Date: 30 March 2010

Fund Project: We thank the National Natural Science Foundation of China (Nos.20343005,20473107,20673130,and 20773147) and the Hong Kong PolyU Joint Supervision Scheme (A-PH78) for financial support.

A series of chiral secondary alcohols were easily prepared by means of asymmetric hydrogenation of prochiral aromatic ketones using a new ((R_ax)-BuP)/(R, R)-DPEN-Ru (Ⅱ) complex catalyst system. The hydrogenation of 2-methylacetophenone in n-butanol (t-BuOK/Ru=45.6/1, S/C=500, 20 atm. Of H₂, 20℃, 48h) afforded (S)-1-(2'-methylphenyl) ethanol in 92% ee and>99% conversion.
- Asymmetric hydrogenation,
- Chiral alcohols,
- Diphosphine ligand,
- Ruthenium complexes,
- Diamine
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