Electrochemical Synthesis of Carbazoles by Dehydrogenative Coupling Reaction
Anton Kehl, Niclas Schupp, Valentina M. Breising, Dieter Schollmeyer, Siegfried R. Waldvogel
Abstract
A constant current protocol, employing undivided cells, a remarkably low supporting electrolyte concentration, inexpensive electrode materials, and a straightforward precursor synthesis enabling a novel access to N-protected carbazoles by anodic N,C bond formation using directly generated amidyl radicals is reported. Scalability of the reaction is demonstrated and an easy deblocking of the benzoyl protecting group is presented.
Topics & Concepts
ElectrochemistryAnodeElectrolyteRadicalCombinatorial chemistryChemistryElectrodeConstant currentCurrent (fluid)Organic chemistryPhysical chemistryElectrical engineeringEngineeringRadical Photochemical ReactionsCatalytic C–H Functionalization MethodsSulfur-Based Synthesis Techniques