Iodobenzene Dichloride/Zinc Chloride-Mediated Synthesis of <i>N</i>
-Alkoxyindole-3-carbonitriles from 3-Alkoxyimino-2-arylalkylnitriles via Intramolecular Heterocyclization
作者:Zhongxiang Yun、Ran Cheng、Jiyun Sun、Daisy Zhang-Negrerie、Yunfei Du
DOI:10.1002/adsc.201701111
日期:2018.1.17
heterocyclization of the readily available 3‐alkoxyimino‐2‐arylalkylnitriles mediated by iodobenzene dichloride/zinc chloride. The mechanism of the reaction proposes the formation of a key intermediate of nitrenium cation from a chlorination and dechlorination process facilitated by the hypervalent iodine reagent and Lewis acid respectively.
在温和条件下,通过二氯化碘苯/氯化锌介导的现成的3-烷氧基亚氨基-2-芳基烷基腈的分子内杂环化作用,合成了一系列N-烷氧基吲哚-3-腈。该反应的机理建议由高价碘试剂和路易斯酸分别促进的氯化和脱氯过程中形成nitr阳离子的关键中间体。