Kinetics of the Thermal Decomposition of Substituted Cyclic Organic Peroxides in Toluene Solution: Substituent Effects on the Reaction Rates and the Activation Parameters of the Unimolecular Reactions
作者:Adriana I. Cañizo、Gladys N. Eyler、Carmen M. Mateo、Elida E. Alvarez、Rosa K. Nesprías
DOI:10.3987/com-04-10128
日期:——
Thermaldecomposition reactions of substituted cyclic organic di- and triperoxides have been carried out in toluene solution in order to investigate substituenteffects on homolytic scission of the O-O bond in those compounds. A comparative analysis of the reactivities at 145 °C and the activation parameters for unimolecular reactions of molecules of this type were interpreted in terms of substituent
为了研究取代基对这些化合物中 OO 键均裂的影响,已在甲苯溶液中进行了取代的环状有机二过氧化物和三过氧化物的热分解反应。对 145 °C 下的反应性和此类分子的单分子反应的活化参数的比较分析根据取代基效应和环大小进行了解释。建立等速关系以验证所考虑物质的单分子均裂反应存在真正的取代基效应。具有非常高反应性和空间位阻的环状有机过氧化物偏离了相关性。似乎可以根据活化参数值确定过氧基是六元环还是九元环的一部分。
Mechanism of the thermal decomposition of substituted tetraoxanes in benzene solution: effect of substituents on the activation parameters of the unimolecular reactions
作者:Lazaro F. R. Cafferata、G. N. Eyler、E. L. Svartman、A. I. Canizo、E. J. Borkowski