2-Arylindoles are privileged structures widely present in biologically active molecules. New sustainable synthetic routes toward their synthesis are, therefore, in high demand. Herein, a mixed base-promoted benzylic C–H deprotonation of commercially available ortho-anisoles, addition of the resulting anion to benzonitriles, and SNAr to displace the methoxy group provide indoles. A diverse array of
2-Arylindoles 是广泛存在于生物活性分子中的特殊结构。因此,对其合成的新的可持续合成路线的需求量很大。在此,混合碱促进市售邻苯甲醚的苄基 C-H 去质子化,将所得阴离子添加到苯甲腈,以及用于置换甲氧基的S N Ar 提供吲哚。在不添加过渡金属催化剂的情况下,以良好的产率(>30 个实例,产率高达 99%)制备了多种多样的 2-芳基吲哚。
HEPATITIS C VIRUS POLYMERASE INHIBITORS WITH HETEROBICYCLIC STRUCTURE
申请人:BOEHRINGER INGELHEIM (CANADA) LTD.
公开号:EP1414441B1
公开(公告)日:2008-01-02
Synthesis of Indoles through Domino Reactions of 2‐Fluorotoluenes and Nitriles
作者:Jianyou Mao、Zhiting Wang、Xinyu Xu、Guoqing Liu、Runsheng Jiang、Haixing Guan、Zhipeng Zheng、Patrick J. Walsh
DOI:10.1002/anie.201904658
日期:2019.8.5
chemistry, and therefore, novel and efficient approaches to their synthesis are in high demand. Among indoles, 2‐aryl indoles have been described as privileged scaffolds. Advanced herein is a straightforward, practical, and transition‐metal‐free assembly of 2‐aryl indoles. Simply combining readily available 2‐fluorotoluenes, nitriles, LiN(SiMe3)2, and CsF enables the generation of a diverse array of indoles