| 氮氧自由基 VII: 双多氟和全氟烷基氮氧自由基与烷烃攫氢反应的顺磁共振研究 |
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| 引用本文： | 陈国飞,胡裕杰,曲延珍,赵成学,蒋锡夔.氮氧自由基 VII: 双多氟和全氟烷基氮氧自由基与烷烃攫氢反应的顺磁共振研究[J].化学学报,1989,47(10):979-983. |
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| 作者姓名： | 陈国飞 胡裕杰 曲延珍 赵成学 蒋锡夔 |
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| 作者单位： | 中国科学院上海有机化学研究所 |
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| 摘 要： | 本文报道将先前合成的双多氟和全氟烷基氮氧自由基1与多氟和全氟亚硝基烷烃2混合溶液的技术应用于烷 烃、芳烃3自由基攫氢反应的研究, 氮氧自由基1由烷烃, 芳烃迅速攫氢转变为羟胺, 生成的烷基自由基中间体立即被2截捕得到稳定的自旋加合物4和5, 由自旋加合物ESR参数, 可以确定自由基结构并由此来研究攫氢反应机理, 本文也提供了一个产生大量含氟烷基氮氧自由基并研究其结构的有效而简单的方法。
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| 关 键 词： | 反应机理 烷烃 芳香族烃 顺磁共振 空间效应 电子自旋共振 电子俘获 氮氧自由基 氟碳化合物 |
Nitroxides VIII: EST studies on the hydrogen abstraction reaction of bis(poly-or perfluoroalkyl) nitroxides from alkanes |
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| CHEN GUOFEI,HU YUJIE,QU YANZHEN,ZHAO CHENGXUE,JIANG XIKUI.Nitroxides VIII: EST studies on the hydrogen abstraction reaction of bis(poly-or perfluoroalkyl) nitroxides from alkanes[J].Acta Chimica Sinica,1989,47(10):979-983. |
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| Authors: | CHEN GUOFEI HU YUJIE QU YANZHEN ZHAO CHENGXUE JIANG XIKUI |
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| Abstract: | When alkanes are mixed with the solns. containing bis(poly- or perfluoroalkyl) nitroxides and poly- or perfluoronitrosoalkanes RFNO, the benzylic and tertiary H-atoms will be selectively abstracted by the nitroxides and the alkyl radicals thus derived are immediately trapped by RFNO. The mechanism of th reaction as well as the structures of the alkyl radicals and their spin adducts were studied by ESR. |
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| Keywords: | REACTION MECHANISM ALKANE AROMATIC HYDROCARBON PARAMAGNETIC RESONANCE STERIC EFFECT ELECTRON SPIN RESONANCE ELECTRON CAPTURE NITRO-OXY RADICAL FLUOROCARBON |
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