| 芳胺-二苯酮光化夺氢反应活泼自由基的ESR研究 |
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| 引用本文： | 周建威,徐广智,唐有祺,李橦,曹维孝,冯新德.芳胺-二苯酮光化夺氢反应活泼自由基的ESR研究[J].波谱学杂志,1984,1(5):421-427. |
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| 作者姓名： | 周建威 徐广智 唐有祺 李橦 曹维孝 冯新德 |
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| 作者单位： | 1. 中国科学院化学研究所;2. 北京大学化学系 |
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| 摘 要： | 本文用自由基捕捉剂与ESR相结合的方法系统研究了各种取代苯胺与二苯酮光化夺氢反应中的活泼自由基。找出了形成N-中心及C-中心自由基的条件:即当芳胺有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。
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| 收稿时间： | 1984-04-26 |
ESR STUDY ON THE FREE RADICALS IN THE PHOTOCHEMICAL HYDROGEN ABSTRACTION REACTION |
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| Zhou Jianwei,Xu Guangzhi,Tang Youqi,Li Tong,Cao Weixiao,Feng Xinde.ESR STUDY ON THE FREE RADICALS IN THE PHOTOCHEMICAL HYDROGEN ABSTRACTION REACTION[J].Chinese Journal of Magnetic Resonance,1984,1(5):421-427. |
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| Authors: | Zhou Jianwei Xu Guangzhi Tang Youqi Li Tong Cao Weixiao Feng Xinde |
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| Institution: | 1. Institute of Chemistry, Academia Sinica;2. Department of Chemistry. Peking University |
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| Abstract: | Active free radicals in the photochemical hydrogen abstraction reaction between benzophenone and aromatic amines have been studied systematically by combination of spin trapping reagents and ESR.The results show that.(l) for primary and secondary amines,benzophenone abstracts H more efficiently from N than from α-C of amines to form N-centered radical (2) for tertiary amines, the abstraction of H is taken place on the α-C of amines to form C-centere dradical. |
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