Vanadium-Catalyzed Synthesis of 4(3<i>H</i>)-Quinazolinones from Anthranilamides and Aryl Aldehydes
作者:Dan Zhan、Tianbin Li、Xiaoping Zhang、Chuan Dai、Haidong Wei、Yuyu Zhang、Qingle Zeng
DOI:10.1080/00397911.2012.717669
日期:2013.9.17
Abstract An efficient synthesis of 2-substituted and 2,3-disubstituted quinazolin-4(3H)-ones via tandem reaction of anthranilamides and aromatic aldehydes catalyzed by vanadyl acetylacetonate with 1 mol% loading under an air atmosphere is described. This new method is associated with several advantages such as low catalyst loading (only 1 mol%), use of green oxidant in the form of air, high atom economy
摘要 描述了在空气气氛下,在 1 mol% 负载量的乙酰丙酮氧钒催化下,邻氨基苯甲酰胺和芳香醛的串联反应有效合成 2-取代和 2,3-二取代喹唑啉-4(3H)-酮。这种新方法具有几个优点,例如催化剂负载量低(仅 1 mol%)、使用空气形式的绿色氧化剂、高原子经济性和良好的收率。还提出了钒催化合成 4(3H)-喹唑啉酮的机理。补充材料可用于本文。访问出版商的 Synthetic Communications ® 在线版以查看免费的补充文件。图形概要