Synthesis of 2-aryl quinazolinones <i>via</i> iron-catalyzed cross-dehydrogenative coupling (CDC) between N–H and C–H bonds
作者:Yoonkyung Jang、Seok Beom Lee、Junhwa Hong、Simin Chun、Jeeyeon Lee、Suckchang Hong
DOI:10.1039/d0ob00866d
日期:——
describe the direct synthesis of quinazolinones via cross-dehydrogenative coupling between methyl arenes and anthranilamides. The C–H functionalization of the benzylic sp3 carbon is achieved by di-t-butyl peroxide under air, and the subsequent amination–aerobic oxidation process completes the annulation process. Iron catalyzed the whole reaction process and various kinds of functional groups were tolerated
在这里,我们描述了通过甲基芳烃和邻氨基苯甲酰胺之间的交叉脱氢偶联直接合成喹唑啉酮。苄sp。的C-H官能化3碳被二-实现吨丁基过氧化物在空气下,和随后的胺化需氧氧化过程完成环过程。铁催化了整个反应过程,在反应条件下可耐受各种官能团,提供了31种使用甲基芳烃衍生物的2-芳基喹唑啉酮实例,收率为57–95%。合成潜力已通过含芳基杂环的额外合成得到证明。