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关于脂族酰基过氧化物在苯中分解,形成的烷基自由基与苯反应生成烷基苯,文献中已有不少报道,而分解过程中由于烷基异构化可能形成烷基苯异构体的实验结果,则至今未见报道.我们用GC-MS法分离分析过氧化月桂酰(1)和过氧化丁酰(2)在苯中分解形成的烷基苯类化合物,都发现有少量氢原子重排产物.1在苯中分解形成的十一烷基苯的异构体为正十一烷基苯(3),2-苯基十一烷(4),3-苯基十一烷(5),4-苯基十一烷(6)和5-苯基十一烷(7);2在苯中分解形成正丙苯和异丙苯.烷基自由基在溶剂中发生自由基型氢重排,除1,5-氢迁移
Aliphatic acyl peroxides in benzene decomposition, the formation of alkyl radicals react with benzene to generate alkylbenzene, the literature has been reported in many, and the decomposition process may be due to the formation of alkyl benzene heterogeneous The experimental results of the structure have not been reported so far.We separated and analyzed the alkylbenzenes formed by the decomposition of lauroyl peroxide (1) and butyryl peroxide (2) in benzene by GC-MS, A small amount of hydrogen atom rearrangement products.1 The isomers of undecylbenzene formed by decomposition in benzene are n-undecylbenzene (3), 2-phenyl-undecane (4), 3-phenyl- (5), 4-phenyl-undecane (6) and 5-phenyl-undecane (7); 2 decomposes in benzene to form n-propylbenzene and cumene. Alkyl radicals occur in the solvent Free radical hydrogen rearrangement, in addition to 1,5-hydrogen migration