Metal-free oxidative cyclization of 2-amino-benzamides, 2-aminobenzenesulfonamide or 2-(aminomethyl)anilines with primary alcohols for the synthesis of quinazolinones and their analogues
作者:Jinwei Sun、Tao Tao、Dan Xu、Hui Cao、Qinggang Kong、Xinyu Wang、Yun Liu、Jianglin Zhao、Yi Wang、Yi Pan
DOI:10.1016/j.tetlet.2018.04.054
日期:2018.5
A general metal-free oxidative cyclization process has been developed for the synthesis of quinazolinones, benzothiadiazines and quinazolines. By this protocol, a range of substituted 2-aminobenzamides, 2-aminobenzenesulfonamide and 2-(aminomethyl)anilines react with various alcohols, leading to the desired annulated products smoothly. This protocol features many advantages as broad substrate scope
已经开发了用于合成喹唑啉酮,苯并噻二嗪和喹唑啉的通用的无金属氧化环化方法。通过该方案,一系列取代的2-氨基苯甲酰胺,2-氨基苯磺酰胺和2-(氨基甲基)苯胺与各种醇反应,从而平稳地得到所需的环状产物。该方案具有许多优点,例如底物范围广,反应条件温和,环境污染小,原子经济性高以及良率或优良率高。