Chem. J. Chinese Universities ›› 2020, Vol. 41 ›› Issue (10): 2256.doi: 10.7503/cjcu20200307

• Article • Previous Articles     Next Articles

Synthesis and Application of Chiral Ru Pincer Catalysts on the Hydrogenation of α-Hydroxy Esters by Dynamic Kinetic Resolution

WANG Biwen1,2, DU Tian1, TANG Weijun1()   

  1. 1.School of Chemistry & Chemical Engineering,Shaanxi Normal University,Xi’an 710119,China
    2.Experimental Chemistry Center of Lanzhou Jiaotong University,Lanzhou 730070,China
  • Received:2020-05-29 Online:2020-10-10 Published:2020-10-08
  • Contact: TANG Weijun E-mail:tangwj@snnu.edu.cn
  • Supported by:
    Supported by the National Natural Science Foundation of China(21672133)

Abstract:

A series of chiral Ru catalysts based on(R)-2-(diphenylphosphanyl)-1-phenyl-N-(pyridin-2-ylmethyl) ethan-1-amine and its derivatives were designed and synthesized. The catalysts were characterized by nuclear magnetic resonance spectrometer and high resolution mass spectrometry. The structure was confirmed by X-ray crystallographic analysis. With α-hydroxy ester compounds as the substrates, the synthesis of chiral diols was developed by dynamic kinetic resolution under the conditions of hydrogenation. The catalytic system can be applied to the hydrogenation of α-hydroxyester, giving the corresponding product in good enantioselectivities.

Key words: Hydrogenation, Dynamic kinetic resolution, α-Hydroxy ester, Ru-Pincer catalyst, Chiral diols

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