3-Substituted 2-bromobiphenylenes were brominated to give benzocyclooctene or 7(8H)-benzocyclooctenone derivatives, but not biphenyl derivatives. The structure of 5,8,10-tribromo-7(8H)-benzocyclooctenone was determined by X-ray diffraction analysis.
3-取代的
2-溴联苯被
溴化得到苯并环
辛烯或 7(8H)-苯并
环辛酮衍
生物,但不是
联苯衍
生物。5,8,10-tribromo-7(8H)-benzocyclooctenone 的结构由 X 射线衍射分析确定。