Oxidative aromatic C–N bond formation: convenient synthesis of N-amino-3-nitrile-indoles via FeBr3-mediated intramolecular cyclization
作者:Zisheng Zheng、Lina Tang、Yanfeng Fan、Xiuxiang Qi、Yunfei Du、Daisy Zhang-Negrerie
DOI:10.1039/c1ob05069a
日期:——
functionalized N-amino-3-nitrile-indole derivatives are obtained via an intramolecular hetero-cyclization of 2-aryl-3-substituted hydrazono-alkylnitriles using FeBr3 as a single electron oxidant. This approach allows the N-moiety on the side-chain to be annulated to the benzene ring during the final synthetic step via direct oxidative aromatic C–N bond formation.
通过使用FeBr 3作为单电子氧化剂,通过2-芳基-3-取代的肼基-烷基腈的分子内杂环化,可获得各种官能化的N-氨基-3-腈-吲哚衍生物。这种方法允许在最后的合成步骤中,通过直接氧化芳族C–N键的形成,将侧链上的N部分环合到苯环上。