A Green Synthesis of Pyrido[1,2-<i>a</i>]quinazoline-1,6-dione Derivatives in Ionic Liquid Catalyzed by Iodine
作者:Lian Lu、Mei-Mei Zhang、Xiang-Shan Wang
DOI:10.1002/jhet.1837
日期:2014.8
A mild, green, and facile route to the synthesis of 3,4,4a,5-tetrahydro-4a-methyl-2H-pyrido[1,2-a]quinazoline-1,6-dione derivatives has been developed. In the presence of iodine, a variety of 2-aminobenzamides underwent a tandem reaction with 6-chlorohexan-2-one to afford the corresponding pyridoquinazolines in good to high yields.
到3,4,4的合成温和,绿色和容易路线一个,5-四氢-4-一个甲基-2 ħ吡啶并[1,2一]喹唑啉-1,6-二酮衍生物已被开发。在存在碘,各种2-氨基苯甲酰胺进行了串联反应与6-氯己-2-酮,以高至高收率得到相应的吡啶并喹唑啉。