Metal-Free Synthesis of 3,3-Disubstituted Oxoindoles by Iodine(III)-Catalyzed Bromocarbocyclizations
作者:David C. Fabry、Maciej Stodulski、Stefanie Hoerner、Tanja Gulder
DOI:10.1002/chem.201201232
日期:2012.8.27
“I” did it: An iodine(III)‐mediated bromocarbocyclization was elaborated as an efficient tool for the synthesis of oxoindoles. This method is applicable to a variety of structurally different substrates, also with chemically sensitive groups, and gives access to the heterocycles in a regio‐ and stereoselective fashion (see scheme). The indole‐2‐ones obtained can be converted easily into structurally
“我”做到了:精心设计了碘(III)介导的溴碳环化反应作为合成羟吲哚的有效工具。该方法适用于各种结构不同的底物,也具有化学敏感性基团,并且可以以区域和立体选择性方式进入杂环(参见方案)。获得的吲哚-2-酮可轻松转化为结构复杂的目标化合物,例如生物碱毒扁豆碱。