An Efficient Three-component, One-pot Synthesis of Quinazolines under Solvent-free and Catalyst-free Condition
作者:Subrahmanya Ishwar Bhat、U. K. Das、Darshak R. Trivedi
DOI:10.1002/jhet.2220
日期:2015.7
protocol for the synthesis of quinazolines in the absence of solvent and catalyst has been developed. 2,4‐Disubstituted quinazolines have been synthesized from three‐component one‐pot reactions of 2‐aminoaryl ketones, orthoesters, and ammonium acetate. The present method has advantages of operational simplicity, substrate generality, clean reaction, high yields (76–94%), and moderate reaction time. The plausible
已经开发出在没有溶剂和催化剂的情况下合成喹唑啉的有效绿色方案。由2-氨基芳基酮,原酸酯和乙酸铵的三组分一锅法反应合成了2,4-二取代的喹唑啉。本方法具有操作简单,底物通用,反应干净,收率高(76-94%)和反应时间适中的优点。基于分离的中间体的光谱表征和单晶X射线分析,提出了反应的合理机理。