Chinese Journal of Organic Chemistry ›› 2022, Vol. 42 ›› Issue (1): 190-199.DOI: 10.6023/cjoc202107018 Previous Articles     Next Articles

ARTICLES

基于非对称性三唑萘啶吡啶铜催化合成吡嗪与酮衍生物

李家豪a, 杨义科b, 胡文康a, 夏晓峰a, 王大伟a,*()   

  1. a 江南大学化学与材料工程学院 教育部合成与生物胶体重点实验室 江苏无锡 214122
    b 河南警察学院刑事科学技术系 郑州 450046
  • 收稿日期:2021-07-07 修回日期:2021-09-02 发布日期:2021-09-08
  • 通讯作者: 王大伟
  • 基金资助:
    国家自然科学基金(21776111)

Catalytic Synthesis of Pyrazine and Ketone Derivatives by Unsymmetrical Triazolyl-Naphthyridinyl-Pyridine Copper

Jiahao Lia, Yike Yangb, Wenkang Hua, Xiaofeng Xiaa, Dawei Wanga()   

  1. a Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122
    b Department of Criminal Science and Technology, Henan Police College, Zhengzhou 450046
  • Received:2021-07-07 Revised:2021-09-02 Published:2021-09-08
  • Contact: Dawei Wang
  • Supported by:
    National Natural Science Foundation of China(21776111)

A novel method for the synthesis of pyrazine and ketone derivatives was developed by using asymmetric ligand-based catalyst TNP-Cu@rGO. The screening of reaction bases, solvents, reaction temperatures and time was conducted to determine optimal reaction conditions. The reaction scope and generality of this methodology for the synthesis of pyrazines were tested and the results showed that this catalytic system had good functional tolerance. More than twenty substrates experiments were successfully set up, and pyrazines with moderate to high yields were isolated. Additionally, this catalytic system could also be used to the systhesis of ketones in good yields. Furthermore, the mechanism investigations were conducted for the synthesis of pyrazine derivatives to better understand the synthesis of pyrazines. The recycling test of TNP-Cu@rGO for the synthesis of pyrazines was investigated and the experiments showed that the catalyst could still maintain high catalytic activity for five times.

Key words: borrowing hydrogen, unsymmetrical, pyrazine, copper