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

被引：9

作者：

Khursan, SL ^{[1
]}

Grabovskii, SA ^{[1
]}

Kabal'nova, NN ^{[1
]}

Galkin, EG ^{[1
]}

Shereshovets, VV ^{[1
]}

机构：

[1] Russian Acad Sci, Ufa Res Ctr, Inst Organ Chem, Ufa 450054, Russia

来源：

RUSSIAN CHEMICAL BULLETIN | 2000年 / 49卷 / 08期

关键词：

dimethyldioxirane; thermolysis; kinetics; reaction mechanism;

D O I：

10.1007/BF02495074

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The products and kinetics of the thermal decomposition of dimethyldioxirane (DMDO) were studied. The reaction proceeds via 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 DM DO molecule. The contribution of the latter reaction channel is cn. 23% at 56 degrees 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.

引用

页码：1338 / 1348

页数：11

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