The kinetics and mechanism of gas-phase N-oxidation of pyridine with hydrogen peroxide

被引：1
|
作者：
Nagieva, I. T. [1 ]
机构：
[1] Baku State Univ, Baku, Azerbaijan
来源：
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A | 2009年 / 83卷 / 10期
关键词：
Chain Oxidation; Free Radical Chain; Chemical Interference; Radical Chain Oxidation; Synchronous Reaction;
D O I：
10.1134/S0036024409100185
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The kinetics of N-monooxidation of 4-vinylpyridine as a pi-deficient heteroaromatic compound under the conditions of gas-phase free-radical chain oxidation was studied. The experimental interference kinetic curves of synchronous hydrogen peroxide decomposition and 4-vinylpyridine N-oxidation reactions were obtained. The region of selective N-oxidation was determined and optimum conditions of N-oxide preparation found. The most probable mechanism was suggested. According to this mechanism, a key role in the free-radical N-oxidation of the substrate and its synchronization with the H2O2 decomposition reaction was played by HO2 radicals.
引用
收藏
页码：1731 / 1733
页数：3
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