title: Metal-free, visible-light-mediated direct C-H arylation of heteroarenes with aryl diazonium salts.
abstract: Visible light along with 1 mol % eosin Y catalyzes the direct C-H bond arylation of heteroarenes with aryl diazonium salts by a photoredox process. We have investigated the scope of the reaction for several aryl diazonium salts and heteroarenes. The general and easy procedure provides a transition-metal-free alternative for the formation of aryl-heteroaryl bonds.
authors.affiliation: Institut für Organische Chemie, Universität Regensburg, Universitätsstraße 31, D-93053 Regensburg, Germany.
authors.forename: Durga Prasad
authors.initials: DP
authors.lastname: Hari
authors.forename: Peter
authors.initials: P
authors.lastname: Schroll
authors.forename: Burkhard
authors.initials: B
authors.lastname: König
mesh_terms: D002244:Carbon / Q000737:chemistry; D002384:Catalysis; D003497:Cyclic N-Oxides / Q000737:chemistry; D003979:Diazonium Compounds / Q000737:chemistry*; D006859:Hydrogen / Q000737:chemistry; D008027:Light; D009682:Magnetic Resonance Spectroscopy / Q000379:methods; D008422:Materials Testing; D008670:Metals / Q000737:chemistry*; D008956:Models, Chemical; D010084:Oxidation-Reduction; D010165:Palladium / Q000737:chemistry; D010777:Photochemistry / Q000379:methods; D011758:Pyrroles / Q000737:chemistry; D012492:Salts / Q000737:chemistry*; D028561:Transition Elements / Q000737:chemistry
chemical_list: D003497:Cyclic N-Oxides; D003979:Diazonium Compounds; D008670:Metals; D011758:Pyrroles; D012492:Salts; D028561:Transition Elements; D010165:Palladium; D002244:Carbon; D006859:Hydrogen; C003959:TEMPO