Phenanthrene-sensitized photoreaction of 1,1-diphenylethene (DPE) derivatives and 1,4-dicyanobenzene (DCNB) in benzene leads to a novel intermolecular cycloaddition to give isoquinoline derivatives as a novel synthetic method. The feasibility of this reaction was dependent upon the side chain structure of DPE derivatives, which would regulate the stability of radical cation DPE+· in a highly polar
苯中
1,1-二苯乙烯(DPE)衍
生物和1,4-二
氰基苯(
DCNB)的
菲敏光反应导致新的分子间环加成反应,从而制得
异喹啉衍
生物。该反应的可行性取决于DPE衍
生物的侧链结构,其通过超共轭或邻近基团的参与来调节高极性激基复合物和/或接触自由基离子对中自由基阳离子DPE +·的稳定性。