INTERMEDIACY OF CYCLOHEXADIENYL RADICALS WITH AN AROYLOXY GROUP ON THE METHYL-SUBSTITUTED IPSO CARBON ATOM IN PHOTOLYSES OF BIS(2-THIOPHENECARBONYL) AND DIBENZOYL PEROXIDES IN 1,3,5-TRIMETHYLBENZENE
作者:Shigeru Takahara、Akihide Kitamura、Hirochika Sakuragi、Katsumi Tokumaru
DOI:10.1246/cl.1983.1315
日期:1983.8.5
Investigation of the products arising from photolyses of bis(2-thiophenecarbonyl) and dibenzoyl peroxides in 1,3,5-trimethylbenzene provided clear evidence for participation of cyclohexadienyl radicals with the aroyloxy group on the methyl-substituted ipso carbon atom in formation of 2′,3′,4,5′,6-pentamethyldiphenylmethane through recombination with 3,5-dimethylphenylmethyl radicals.
对1,3,5-三甲基苯中双(2-噻吩羧基)和二苯甲酰过氧化物光解产物的研究清楚地证明了环己二烯基自由基与甲基取代的即位碳原子上的酰氧基团参与反应,通过与3,5-二甲基苯基甲基自由基重组形成2′,3′,4,5′,6-五甲基二苯基甲烷。