Nitromethane as a reagent for the synthesis of 3-nitroindoles from 2-haloarylamine derivatives
作者:G. A. Chesnokov、A. A. Ageshina、A. V. Maryanova、S. A. Rzhevskiy、P. S. Gribanov、M. A. Topchiy、M. S. Nechaev、A. F. Asachenko
DOI:10.1007/s11172-020-3028-8
日期:2020.12
A new approach to the synthesis of 3-nitroindoles using palladium-catalyzed arylation of nitromethane with N-(2-bromoaryl)imidates was developed. A convenient and rapid method for cyclization of ethyl N-(2-nitromethylaryl)acetimidates to 2-methyl-3-nitro-1H-indoles was proposed.
Microwave-Assisted Synthesis of 3-Nitroindoles from <i>N</i>-Aryl Enamines via Intramolecular Arene–Alkene Coupling
作者:Huy H. Nguyen、Mark J. Kurth
DOI:10.1021/ol303314x
日期:2013.1.18
A variety of N-aryl beta-nitroenamines were effectively transformed into 3-nitroindoles in good yields and with complete regioselectivity via a rapid microwave (mu V) assisted intramolecular arene alkene coupling reaction. This report further demonstrates the versatility of this method by constructing 3-carboalkozy- and 3-cyanoindoles. Optimization data, substrate scope, and applications are discussed.
Metal-free nitrative cyclization of N-aryl imines with tert-butyl nitrite: dehydrogenative access to 3-nitroindoles
作者:Guo-Bo Deng、Jia-Ling Zhang、Yan-Yun Liu、Bang Liu、Xu-Heng Yang、Jin-Heng Li
DOI:10.1039/c4cc08498e
日期:——
A novel metal-free oxidative C–H functionalization and nitrative cyclization access to 3-nitroindoles from N-aryl imines is described.