Aqueous Hydrofluoric Acid Catalyzed Facile Synthesis of 2,3,6-Substituted Quinoxalines
作者:A. Chandra Shekhar、A. Ravi Kumar、G. Sathaiah、K. Raju、P. V. S. S. Srinivas、P. Shanthan Rao、B. Narsaiah
DOI:10.1002/jhet.1753
日期:2014.9
A versatile synthetic route for the preparation of 2,3,6‐trisubstituted quinoxalines in excellent yield is developed from θ‐diamines and 1,2‐dicarbonyl compounds in which aqueous hydrofluoric acid was employed as the medium and catalyst. Other salient features of this protocol include milder conditions, absence of coupling agents, and easy workup procedures.
从θ-二胺和1,2-二羰基化合物(使用含水氢氟酸作为介质和催化剂)开发出了一种通用的合成路线,该路线以优异的产率制备2,3,6-三取代的喹喔啉。该协议的其他显着特征包括条件较温和,不存在偶联剂以及易于处理的程序。