KOH/DMSO: A basic suspension for transition metal-free Tandem synthesis of 2,3-dihydroquinazolin-4(1H)-ones
作者:Apurba Dutta、Krishnaiah Damarla、Ankur Bordoloi、Arvind Kumar、Diganta Sarma
DOI:10.1016/j.tetlet.2019.05.030
日期:2019.6
A novel protocol for the synthesis of 2,3-dihydroquinazolin-4(1H)-ones from 2-aminobenzamides and aldehyde derivatives catalyzed by KOH/DMSO suspension has been developed. The present transition metal free methodology is operationally simple, scalable and varieties of 2,3-dihydroquinazolin-4(1H)-one derivatives were obtained in good to excellent yields in short reaction times.
开发了一种新的协议,由2-氨基苯甲酰胺和由KOH / DMSO悬浮液催化的醛衍生物合成2,3-二氢喹唑啉-4(1 H)-酮。当前的无过渡金属方法是操作简单,可扩展的,并且在短的反应时间内以良好至优异的收率获得了各种2,3-二氢喹唑啉-4(1 H)-one衍生物。