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
Synthesis of 2-arylindole derivatives and evaluation as nitric oxide synthase and NFκB inhibitors
作者:Xufen Yu、Eun-Jung Park、Tamara P. Kondratyuk、John M. Pezzuto、Dianqing Sun
DOI:10.1039/c2ob26456k
日期:——
small molecule drug-like inhibitors blocking both nitricoxide synthase and NFκB could offer a synergistic therapeutic approach in the prevention and treatment of inflammation and cancer. During the course of evaluating the biological potential of a commercial compound library, 2-phenylindole (1) displayed inhibitory activity against nitrite production and NFκB with IC50 values of 38.1 ± 1.8 and 25.4
An efficient synthesis of indolo[2,1-a]benzazepinones through rhodium-catalyzed cascade reactions of 2-arylindoles with allyl alcohols has been developed. This work expands the scope of products that are available through C–H activation/intramolecular annulation reactions of 2-arylindoles in organic synthesis.
已经开发出通过铑催化的 2-芳基吲哚与烯丙醇的级联反应有效合成吲哚[ 2,1- a ]苯并氮杂酮。这项工作扩展了通过有机合成中 2-芳基吲哚的 C-H 活化/分子内环化反应可获得的产品范围。
One-Pot Reaction between <i>N</i>-Tosylhydrazones and 2-Nitrobenzyl Bromide: Route to NH-Free C2-Arylindoles
A one-pot Barluenga coupling between N-tosylhydrazones and nitro-benzyl bromide, followed by deoxygenation of ortho-nitrostyrenes, and subsequent cyclization has been developed, providing a new way to synthesize various C2-arylindoles. This method exhibits a good substrate scope and functional group tolerance, and it allows an access to NH-free indoles, which can present a potential utility in medicinal
Ready synthesis of free N-H 2-arylindoles via the copper-catalyzed amination of 2-bromo-arylacetylenes with aqueous ammonia and sequential intramolecular cyclization
A wide range of free N-H 2-arylindoles were synthesised via the copper(II)-catalyzed amination of 2-bromo-arylacetylenes with aqueousammonia and sequential intramolecular cyclization. The convenience and atom economy of aqueousammonia, and the low cost of the copper catalytic system make this protocol readily superior in practical application.