Investigation of reactions of the zwitterionic polycycle 1 with
electron-deficient dienophiles revealed that Michael addition products 3
and 4, selective cycloadducts 2 and, in a special case, a stable dimeric
radical cation 5 are formed.
对齐聚多环 1 与缺电子二
烯烃反应的研究表明,可形成迈克尔加成产物 3 和 4、选择性环加成产物 2,在特殊情况下,还可形成稳定的二聚自由基阳离子 5。