Rapid Synthesis of Fused N-Heterocycles by Transition-Metal-Free Electrophilic Amination of Arene CH Bonds
作者:Hongyin Gao、Qing-Long Xu、Muhammed Yousufuddin、Daniel H. Ess、László Kürti
DOI:10.1002/anie.201309973
日期:2014.3.3
disclose an efficient and operationally simple protocol for the preparation of fused N‐heterocycles starting from readily available 2‐nitrobiaryls and PhMgBr under mild conditions. More than two dozen N‐heterocycles, including two bioactive natural products, have been synthesized using this method. A stepwise electrophilic aromatic cyclization mechanism was proposed by DFT calculations.
我们公开了在温和的条件下从容易获得的2-硝基联芳基和PhMgBr开始制备稠合N杂环的有效且操作简单的方案。使用这种方法已经合成了超过十二个N-杂环,包括两种具有生物活性的天然产物。通过DFT计算提出了逐步亲电芳族环化的机理。