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3-甲基-3-(9-菲基)-1-丁烯(Ⅰ)的光重排是双π甲烷系列中特别有趣的例子,1,1-二甲基-2-(9-菲基)环丙烷是它的光化产物,它只经激发三线态,~3I~*生成,虽然其激发单线态,~3I~*在本质上可能包括在整个反应机理之中。作者认为由于~3I~*的系间窜越量子产率较高,重排反应的双途径性倾向于三线态途径,这符合所观察到的结果,但是值得深入研究那些控制重排双途径性的一些重要因素。
Light rearrangement of 3-methyl-3- (9-phenanthryl) -1-butene (I) is a particularly interesting example of the double π-methane series. 1,1-Dimethyl-2- The cyclopropane is its photochemical product, which is only excited triplet state, ~ 3I ~ * generated, although it is excited singlet state, ~ 3I ~ * may essentially be included in the entire reaction mechanism. The authors believe that the dual pathway of rearrangement reactions tends to triplet mode due to higher quantum yields of the intersystem crossing ~ 3I ~ *, which is consistent with the observed results, but it is worth studying in depth the role of those that control rearrangement dual pathway Some of the important factors.