Citation: Meng Lin Ma, Zong Hai Peng, Yu Guo, Li Chen, Hua Chen, Xian Jun Li. Alkoxy substituted MeO-BIPHEP-type diphosphines ligands for asymmetric hydrogenation of aryl ketones[J]. Chinese Chemical Letters, ;2010, 21(5): 576-579. doi: 10.1016/j.cclet.2010.01.030 shu

Alkoxy substituted MeO-BIPHEP-type diphosphines ligands for asymmetric hydrogenation of aryl ketones

Meng Lin Ma ^a,b, ,
Zong Hai Peng ^b ,
Yu Guo ^b ,
Li Chen ^b ,
Hua Chen ^b ,
Xian Jun Li ^b

a Department of Chemistry, Xihua University, Chengdu 610039, China;
b Key Lab of Green Chemistry and Technology, Ministry of Education, The Institute of Homogeneous Catalysis, Faculty of Chemistry, Sichuan University, Chengdu 610064, China

Received Date: 9 October 2009

Fund Project: We thank the NSFC (No. 20272037), the Doctor's Foundation of Education Ministry of China (No. 20030610022) and Foundation of Xihua University (No. R0723315) and (No. 07ZA109) for the financial support of this work.

In this paper, a series of optically active MeO-BIPHEP-type ligands, (S)-6,6'-dimethoxy-2,2'-bis (di-p-alkoxyphenylphosphine)-1,1'-biphenyl were synthesized and used to prepare the ruthenium complex. The effects of para-substituted were observed, the results showed that the ruthenium catalysts[diphosphine RuCl₂ diamine]containing both t-Bu and i-Pr substitutions have better activities and enantioselectivities than the non-substituted ruthenium catalysts in the asymmetric hydrogenation of acetophenone.
- Aryl ketone,
- Asymmetric hydrogenation,
- Biaryl phosphines ligands,
- Ruthenium complex
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