The behaviour of 1H-cyclopropabenzene (1) and 1H-cyclopropa[b]naphthalene (23) towards a variety of radicals results in opening of the three- membered ring to give ortho -substituted benzyl and 2-methylnaphthalene derivatives, e.g. (13) and (28), respectively. Ring expansion into the cycloheptatriene manifold by way of addition to the bridge bond and norcaradiene formation have not been observed. Analogous reactions with the methylidenecyclopropa [b] naphthalenes (33) and (34) lead to much decomposition, and provide little evidence for the C1cycloproparenyl radicals (35) and (36).
1H- 环丙基苯 (1) 和 1H- 环丙[b]萘 (23) 对各种自由基的作用结果是打开三位环,分别生成正交取代的苄基和 2-甲基萘衍生物,如 (13) 和 (28)。还没有观察到通过桥键加成的方式将环扩展到环庚三烯歧管和形成芴的情况。与亚甲基环丙[b]萘(33)和(34)的类似反应会导致大量分解,而 C1 环丙烯基(35)和(36)则没有提供多少证据。