Electrochemical Oxidative Dehydrogenative Phosphorylation of <i>N</i>-Heterocycles with P(O)–H Compounds in Imidazolium-Based Ionic Liquid
Xiaojuan Dong, Ruige Wang, Weiwei Jin, Chenjiang Liu
Abstract
We report a direct and green electrochemical oxidative cross-dehydrogenative coupling reaction of N-heterocycles with hydrogen phosphoryl compounds under external oxidant-free conditions. Various phosphorylation products of substituted carbazoles and indoles are assembled in modest to excellent yields. A hydrogen release process is preliminarily demonstrated and H2 is the sole byproduct. An imidazolium based ionic liquid is selected as the optimal electrolyte.
Topics & Concepts
Ionic liquidChemistryOxidative phosphorylationElectrochemistryElectrolyteOxidative coupling of methanePhosphorylationCombinatorial chemistryIonic bondingOrganic chemistryCatalysisElectrodeIonBiochemistryPhysical chemistryCatalytic C–H Functionalization MethodsSulfur-Based Synthesis TechniquesAsymmetric Hydrogenation and Catalysis