Metal‐Free Direct Oxidative C−N Bond Coupling of Quinoxalin‐2(1<i>H</i>)‐ones with Azoles under Mild Conditions
Jingwen Guo, Lina Zhang, Xinyue Du, Liting Zhang, Yuepiao Cai, Qinqin Xia
Abstract
Abstract Direct C3−H amination of quinoxalin‐2(1 H )‐ones with azoles under mild conditions promoted by PIFA has been achieved in good yield in a very fast manner. Mechanistic study revealed that the reaction proceeds through a radical process. In addition, this method could be applied to gram‐scale reaction.
Topics & Concepts
ChemistryAminationYield (engineering)Combinatorial chemistryOxidative phosphorylationOxidative coupling of methaneMedicinal chemistryRadicalStereochemistryCoupling reactionOrganic chemistryCatalysisBiochemistryMaterials scienceMetallurgySynthesis and Biological EvaluationCatalytic C–H Functionalization MethodsCyclopropane Reaction Mechanisms