The Development of a Palladium-Catalyzed Tandem Addition/Cyclization for the Construction of Indole Skeletons
作者:Shuling Yu、Linjun Qi、Kun Hu、Julin Gong、Tianxing Cheng、Qingzong Wang、Jiuxi Chen、Huayue Wu
DOI:10.1021/acs.joc.7b00148
日期:2017.4.7
A palladium-catalyzed tandem addition/cyclization of 2-(2-aminoaryl)acetonitriles with arylboronic acids has been developed for the first time, achieving a new strategy for direct construction of indole skeletons. This system shows good functional group tolerance and remarkable chemoselectivity. In particular, the halogen (e.g., bromo and iodo) substituents are amenable to further synthetic elaborations
首次开发了钯催化的2-(2-氨基芳基)乙腈与芳基硼酸的串联串联加成/环化反应,实现了直接构建吲哚骨架的新策略。该系统显示出良好的官能团耐受性和出色的化学选择性。特别地,卤素(例如,溴和碘)取代基适合于进一步的合成精细化,从而扩大了产物的多样性。初步的机械实验表明,这种转化涉及相继的亲核加成,然后进行分子内环化。