The kinetic regularities, products, and mechanism of the thermal decomposition of dimethyldioxirane. The contribution of molecular and radical reaction channels

被引：0
作者：
S. L. Khursan
S. A. Grabovskii
N. N. Kabal'nova
E. G. Galkin
V. V. Shereshovets
机构：
[1] Ufa Research Center of the Russian Academy of Sciences,Institute of Organic Chemistry
来源：
Russian Chemical Bulletin | 2000年 / 49卷
关键词：
dimethyldioxirane; thermolysis; kinetics; reaction mechanism;
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摘要：
The products and kinetics of the thermal decomposition of dimethyldioxirane (DMDO) were studied. The reaction proceedsvia three parallel pathways: isomerization to methyl acetate, oxygen atom insertion into the C−H bond of a solvent molecule (acetone), and the solvent-induced homolysis of the O−O bond in the DMDO molecule. The contribution of the latter reaction channel isca. 23% at 56°C. The overall kinetic parameters of DMDO thermolysis in oxygen atmosphere were determined. The free radical-induced DMDO decomposition occurs in an inert atmosphere. The formal kinetics of this reaction was investigated. The mechanism of the DMDO thermolysis is discussed.
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页码：1338 / 1348
页数：10
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