Chem. J. Chinese Universities ›› 2019, Vol. 40 ›› Issue (8): 1628.doi: 10.7503/cjcu20190141

• Organic Chemistry • Previous Articles     Next Articles

Application of Two Chiral BINOL Polymers in Asymmetric Epoxidation Reaction

LIU Feng,LI Qinfang,OUYANG Kunbing(),YANG Nianfa()   

  1. Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
  • Received:2019-03-07 Online:2019-08-10 Published:2019-07-12
  • Contact: OUYANG Kunbing,YANG Nianfa E-mail:kbouyang@xtu.edu.cn;nfyang@xtu.edu.cn
  • Supported by:
    † Supported by the General Project of the Education Department of Hunan Province, China(17C1524);the Foundation for Young Scholars of Xiangtan University of Science & Technology(15QDZ52)

Abstract:

Two chiral polymers based on binaphthol(BINOL) were synthesized. The polymer can be used as a chiral inducer to coordinate with ZnEt2 to form a recoverable self-supporting catalyst, which could be used in the asymmetric catalytic reaction of α,β-unsaturated ketones. The target products of high yield and good enantioselectivity(e.e. value up to 99%) can be obtained under mild conditions. The catalytic activity was not reduced significantly after 4 or 5 cycles of recovery of the recovered polymers.

Key words: 1,1'-Bi-2-naphthol, Chiral polymer, Aromatic ketone, Asymmetric epoxidation, ZnEt2

CLC Number: 

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