The NiBr2(dppe)–Zn system effectively catalyzes the [2 + 2 + 2] cocyclotrimerization of arynes with diynes, leading to substituted naphthalene derivatives in moderate to good yields. This cocyclotrimerization reaction shows excellent tolerance of functional groups and leads to products of 5- to 7-membered fused-ring sizes
NiBr2(dppe)-Zn 系统能有效催化
芳烃与二炔的[2 + 2 + 2]环三聚反应,从而以中等至良好的收率生成取代的
萘衍
生物。这种共环三聚反应对官能团有极好的耐受性,可生成 5 至 7 元熔环大小的产物