| 氮氧自由基研究 XX: 哌啶氧铵溴化物与半胱氨酸于酸性水溶液中的反应和机理 |
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| 引用本文： | 刘有成,张发. 氮氧自由基研究 XX: 哌啶氧铵溴化物与半胱氨酸于酸性水溶液中的反应和机理[J]. 化学学报, 1989, 47(4): 411-416 |
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| 作者姓名： | 刘有成 张发 |
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| 作者单位： | 兰州大学化学系 |
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| 摘 要： | 本文从反应产物, 化学反应计量关系, 电化学模拟和动力学测定诸方面对氧铵盐与dl-半胱氨酸在盐酸水溶液中的反应作了研究.
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| 关 键 词： | 铵化合物 哌啶P 水溶液 氧 反应机理 氮 溴化物 游离基 氧化合物 半胱氨酸 |
Studies on nitroxides XX: A mechanistic study on reaction between 2,2,6,6-tetramethyl-4-hydroxypiperidine oxoammonium bromide and cysteine in acidic aqueous medium |
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| LIU YOUCHENG,ZHANG FA. Studies on nitroxides XX: A mechanistic study on reaction between 2,2,6,6-tetramethyl-4-hydroxypiperidine oxoammonium bromide and cysteine in acidic aqueous medium[J]. Acta Chimica Sinica, 1989, 47(4): 411-416 |
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| Authors: | LIU YOUCHENG ZHANG FA |
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| Abstract: | The products of the title reaction of I in aqueous HCl were the corresponding hydroxylamine and cysteic acid. The stoichiometry of the reaction, determine by the TLC scan method, was 3:1. According to a cyclic voltammetric study, a one-electron-transfer process is involved in the reaction. Stop-flow UV kinetic experiments showed that the reaction was first order in both reactants; the reaction rate decreased with increasing acidity of the medium. |
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| Keywords: | AMMONIUM COMPOUND PIPERIDINE P AQUEOUS SOLUTION OXYGEN REACTION MECHANISM NITROGEN BROMIDE FREE RADICAL OXYGEN COMPOUNDS CYSTEINE |
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