作者:Mani Ramanathan、Shiuh-Tzung Liu
DOI:10.1021/acs.joc.8b02239
日期:2018.11.16
4-a]quinazolin-13-ones was realized from the direct reaction of o-(methoxycarbonyl)benzenediazonium salts, nitriles, and 2-cyanoanilines in moderate to good yields. This method utilizes the in situ generation of reactive N-arylnitrilium ion, which undergoes further amination/tandem cyclization/amidation to deliver the desired polycyclic scaffolds with consecutive formation of four N–C bonds. Flexibility in substitution
通过邻-(甲氧基羰基)苯重氮盐,腈和2-氰基苯胺的直接反应以中等至良好的产率实现了喹唑啉代[3,4- a ]喹唑啉-13-酮的一锅合成。该方法利用了原位生成的反应性N-芳基腈离子,该离子经过进一步的胺化/串联环化/酰胺化反应,以提供所需的多环骨架,并连续形成四个N-C键。替代模式的灵活性,温和的反应条件和操作简便性是该方法的主要特点。