Selenium-Catalyzed Carbonylative Synthesis of 3,4-Dihydroquinazolin-2(1<i>H</i>)-one Derivatives with TFBen as the CO Source
作者:Rong Zhou、Xinxin Qi、Xiao-Feng Wu
DOI:10.1021/acscombsci.9b00090
日期:2019.8.12
An efficient and general carbonylative procedure for the synthesis of 3,4-dihydroquinazolin-2(1H)-one from 1-(halomethyl)-2-nitrobenzenes and aryl/alkyl amines have been explored. In this approach, to avoid of using toxic CO gas, a solid and stable CO precursor, TFBen (benzene-1,3,5-triyl triformate), was utilized. With elemental selenium as the catalyst, a variety of aryl/alkyl amines has been tolerated
已经研究了一种由1-(卤甲基)-2-硝基苯和芳基/烷基胺合成3,4-二氢喹唑啉-2(1 H)-1的有效且通用的羰基化方法。在这种方法中,为了避免使用有毒的CO气体,使用了固态且稳定的CO前驱物TFBen(苯甲酸1,3,5-三甲苯酯)。以元素硒为催化剂,多种芳基/烷基胺已被很好地耐受,从而在温和的反应条件下以中等至极好的收率提供了相应的3,4-二氢喹唑啉-2(1 H)-一产物。