open air conditions. The reaction was carried out in a solvent and under catalyst free conditions and the products are formed in very good yields. The reaction proceeds in a concerted fashion thus providing potentially bioactive benzazepines by ring expansion of a five-membered indole ring. It is also described that the ring contraction of seven-membered benzazepines in the presence of KOtBu base at room
通过在热和露天条件下使用各种取代的
吲哚和二烷基
乙炔二
羧酸酯已经合成了高度官能化的苯并ze庚因。该反应在溶剂中和无催化剂的条件下进行,并且以非常高的收率形成产物。反应以一致的方式进行,因此通过五元
吲哚环的扩环提供潜在的
生物活性苯并ze庚因。还描述了在室温下在KO t Bu碱存在下七元苯并ze庚因的环收缩以非常好的收率平稳地提供了相应的3-烯基化的
吲哚衍
生物。