Photoreduction and Photoaddition of<i>N</i>-Acetyldiphenylmethyleneamine in Alkylbenzenes
作者:Shuichiro Asao、Naoki Toshima、Hidefumi Hirai
DOI:10.1246/bcsj.48.2068
日期:1975.7
as those in toluene were obtained on irradiation of imine II in ethylbenzene, cumene, o-, m-, and p-xylene, mesitylene, p-methoxytoluene, and p-cyanotoluene, respectively. Two kinds of competitive reaction processes are proposed from the results of the substituent effects for the phenyl ring of toluene, the effect of the additives such as sensitizers and quenchers, and the dependence of the photoreaction
N-乙酰二苯基亚甲基胺 (II) 在甲苯溶液中的辐照分别得到 N-(1,1,2-三苯基乙基)乙酰胺和 N-(1,1-二苯基甲基)乙酰胺,产率分别为 11% 和 4.4%。前者是甲苯与亚胺II的C=N键的加成产物,后者是II的加氢产物。分别在乙苯、异丙苯、邻二甲苯、间二甲苯和对二甲苯、均三甲苯、对甲氧基甲苯和对氰基甲苯中辐照亚胺II,得到与甲苯中相同种类的加成和加氢产物。从甲苯苯环的取代基效应、敏化剂和猝灭剂等添加剂的影响以及光反应产率对添加剂浓度的依赖性的结果,提出了两种竞争反应过程。