高等学校化学学报 ›› 2020, Vol. 41 ›› Issue (10): 2256.doi: 10.7503/cjcu20200307

• 研究论文 • 上一篇    下一篇

手性钌螯合催化剂的合成及在α羟基酯的动态动力学氢化反应中的应用

汪贲文1,2, 杜甜1, 汤卫军1()   

  1. 1.陕西师范大学化学化工学院, 西安 710119
    2.兰州交通大学实验管理中心, 兰州 730070
  • 收稿日期:2020-05-29 出版日期:2020-10-10 发布日期:2020-10-08
  • 通讯作者: 汤卫军 E-mail:tangwj@snnu.edu.cn
  • 基金资助:
    国家自然科学基金(21672133)

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)

摘要:

设计并合成了一系列基于(R)-2-(二苯基膦基)-1-苯基-N-(2′-吡啶甲基)-1-乙胺及其衍生物的手性钌螯合催化剂. 采用核磁共振波谱及高分辨质谱对其进行表征, 并给出单晶结构. 以α-羟基酯类化合物为研究对象, 通过酯的动态动力学氢化还原反应, 发展了一种合成手性二醇的方法.研究结果表明, 该催化体系能有效实现酯的氢化还原, 并获得一定的对映选择性.

关键词: 氢化, 动态动力学拆分, α-羟基酯, 钌鳌合催化剂, 手性二醇

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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