波谱学杂志 ›› 1989, Vol. 6 ›› Issue (4): 399-406.

• 研究论文 • 上一篇    下一篇

硝基芴酮与脂肪胺的光化夺氢反应的ESR研究

周建威, 陈德文, 徐广智   

  1. 中国科学院化学研究所, 北京
  • 收稿日期:1988-07-14 修回日期:1989-01-19 出版日期:1989-12-05 发布日期:2018-01-22
  • 基金资助:
    国家自然科学基金资助课题

AN ESR STUDY FOR THE PHOTOCHEMICAL HYDROGEN-ABSTRACTION REACTION OF FATTY AMINES WITH NITROFLUORENONES

Zhou Jianwei, Chen Dewen, Xu Guangzhi   

  1. Institute of Chemisory, Academica Sinica, Beijing, China
  • Received:1988-07-14 Revised:1989-01-19 Online:1989-12-05 Published:2018-01-22

摘要: 本文用自旋捕捉技术与ESR方法研究了五种硝基芴酮与五种不同的伯、仲、叔脂肪胺的光化夺氢反应中的活泼自由基.结果表明,当胺中有N上氢和α-C上氢时,优先形成N-中心自由基:仅当无N上氢时,才形成C-中心自由基.

关键词: 自由基, 光化夺氢, 电子自旋共振, 脂肪胺, 硝基芴酮

Abstract: The active radicals produced in the photochemical hydrogen-abstraction reaction between five Tatty amines and five nitrofluorenones have been studied by means of spin trapping-ESR technique. The results show that the njtro-gen-centered free radicals arc formed in a first priority when there are N-H atoms and α-C-H atoms in amines, and the Carbon-centered free radical is founed only when there is no hydrogen linked to the nitrogen atom (N-H) in amine, as in the case of ceaction for the teitiary amines.

Key words: Free Radical, Photochemical H-abstraction, ESR, Fatty Amine, Nltrofluorenones