or mercury bis[(diazomethyl)-carbonyl] compounds (10a–c or 12a–c) with 5-chloro-5H-dibenzo[a,d]cycloheptene (6) furnishes the 5(diazomethyl)-5H-dibenzo(a,d)cycloheptenes(8a–c or 13a–c). Copper(II)acetylacetonate catalysed decomposition of these compounds in toluene results, in all cases, in the formation of dibenzosemibullvalenes (17a–f). In addition, the dibenzo[a,e]cyclooctenes 16a–e and, in the
用5-
氯-5H-二苯并[a,d]
环庚烯(6)将(
银重氮甲基)
磷酰基或
汞双[(重氮甲基)-羰基]化合物(10a-c或12a-c)用亲电子重氮链烷取代提供5(重氮甲基)-5H-二苯并(a,d)
环庚烯(8a–c或13a–c)。在所有情况下,
乙酰丙酮铜(II)催化这些化合物在
甲苯中的分解均会导致形成二苯并半bullvalenes(17a–f)。另外,形成了二苯并[a,e]环
辛烯16a-e,在13c的情况下,形成了二苯并七富烯18f。