高等学校化学学报

高等学校化学学报 ›› 1990, Vol. 11 ›› Issue (6): 591.

• 研究论文 • 上一篇    下一篇

电极过程自由基中间体的ESR研究(Ⅳ)——脂肪胺的电解氧化

刘扬1, 徐广智1, 沙精桂2   

  1. 1. 中国科学院化学研究所;
    2. 清华大学化学系
  • 收稿日期:1988-09-27 出版日期:1990-06-24 发布日期:1990-06-24
  • 通讯作者: 刘扬
  • 基金资助:

    国家自然科学基金

ESR Study of Free Radical Intermediates Formed During the Electrode Process (Ⅳ)——Electrolysis-oxidation of Some Alkylamine

Liu Yang1, Xu Guangzhi1, Sha Jinggui2   

  1. 1. Institute of Chemistry, Acaiemia Smica, Beijing;
    2. Department of Chemistry, Qinghua University, Beijing
  • Received:1988-09-27 Online:1990-06-24 Published:1990-06-24

PDF (PC)

摘要： 本文用自旋捕捉技术与ESR相结合的方法研究了6种脂肪胺电解氧化过程中产生的瞬态自由基。结果表明,阳极上脂肪胺氧化产生相应的正离子自由基,而后脱去α-C上的质子得到一碳中心自由基,此自由基能被捕捉剂PBN所捕获;阴极上发生H+还原反应,所得的氢原子也可被PBN捕获。

关键词: 自由基, 脂肪胺, 电解氧化, 电子自旋共振, 自旋捕捉

Abstract: Active free radicals formed in the process of electrolysis-oxidation of some alkylamine (trimethylamine, triethylamine, tri-n-propylamine, tri-i-octylamine, diethylamine and hexahydropy-ridine) were studied by the combination of ESRspectrometry and spin trapping technique. The results show that not only the secondary a-Ccenter radical formed in the anode chamber but also cathodic H atom can be trapped by spin trapping reagent phenyl-t-butyl nitrone.

Key words: Radicals, Alkylamine, Electrolysis-oxidation, ESR, Spin trapping

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