应用化学 ›› 1989, Vol. 0 ›› Issue (1): 69-71.

• 研究简报 • 上一篇    下一篇

环己烯电化学环氧化反应机理的探讨

张文智, 吴锡尊   

  1. 河北师范大学化学系 石家庄
  • 收稿日期:1988-03-24 修回日期:1988-06-25 出版日期:1989-02-10 发布日期:1989-02-10

ON THE MECHANISM OF ELECTROCHEMICAL EPOXIDATION OF CYCLOHEXENE

Zhang Wenzhi, Wu Xizun   

  1. Department of Chemistry, Hebei Teachers' University, Shijiazhuang
  • Received:1988-03-24 Revised:1988-06-25 Published:1989-02-10 Online:1989-02-10

摘要: 用电化学方法合成环氧化合物的研究已有报道,对电环氧化机理的研究却较少.本工作利用循环伏安法和旋转电极法初步探讨了环己烯的电化学环氧化反应机理. 主要仪器有HR-101型双恒电势仪;HR-10lA型旋转电极;HA-501型恒电势仪等. 所用试剂均为分析纯.

关键词: 环氧化, 电化学氧化, 环己烯, 反应机理

Abstract: The electrochemical epoxidation of cyclohexene has been invest gated on Pt anode inH2O-NaBr--MsCN medium using a rotating disk electrode and a rotating ring-disk electrode.The electrolytic products were identified by means of IR and MS. The results show thatcyclohexene was oxidized into epoxycyclohexane by an EC catalytic mechanism: The calculated rate constant k1 of the second reaction was (2.1?0.4)?10-2·s-1.

Key words: Epoxidation, Electrochemical oxidation, Cyclohexene, Mechanism