Mechanism of the Benzophenone-Sensitized Photolysis of<i>O</i>-Benzoyl-<i>N</i>-(1-naphthoyl)-<i>N</i>-phenylhydroxylamine in Cationic Micellar Media
作者:Tsuyoshi Kaneko、Tatsuya Tokue、Kanji Kubo、Tadamitsu Sakurai
DOI:10.1246/bcsj.72.2771
日期:1999.12
benzophenone-sensitized photolysis of the title hydroxylamine (1) in hexadecyltrimethylammonium chloride (HTAC) micelles was found to give benzoyloxy(2,3)- and phenyl(4,5)-migrated products, along with fragmentation products, 1-naphthanilide (6) and benzoic acid (7), which were obtained exclusively from the sensitized reaction in organic media. An analysis of the effects of added benzyl alcohol on the quantum yields
发现标题羟胺 (1) 在十六烷基三甲基氯化铵 (HTAC) 胶束中的二苯甲酮敏化光解产生苯甲酰氧基 (2,3) 和苯基 (4,5) 迁移产物,以及碎裂产物 1-萘苯胺( 6) 和苯甲酸 (7),它们仅从有机介质中的敏化反应中获得。对添加苯甲醇对 HTAC 胶束反应量子产率的影响分析表明,苯甲酰氧基迁移产物来自酰胺基-苯甲酰氧基自由基对(存在于胶束表面),而酰胺基-苯基自由基对(深入渗透到胶束内部)负责苯基重排产物的出现。苯甲醇的这种作用也证实了酰胺基和苯甲酰氧基自由基的夺氢与这些三线态自由基的自旋反转竞争发生。调查结果证实了这些解释...