title: Visible light photocatalytic synthesis of benzothiophenes.
abstract: The photocatalytic reaction of o-methylthio-arenediazonium salts with alkynes yields substituted benzothiophenes regioselectively through a radical annulation process. Green light irradiation of eosin Y initiates the photoredox catalysis. The scope of the reaction was investigated by using various substituted diazonium salts and different alkynes.
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: Thea
authors.initials: T
authors.lastname: Hering
authors.forename: Burkhard
authors.initials: B
authors.lastname: König
mesh_terms: D002384:Catalysis; D008027:Light; D015394:Molecular Structure; D010084:Oxidation-Reduction; D055668:Photochemical Processes; D013876:Thiophenes / Q000138:chemical synthesis*
chemical_list: D013876:Thiophenes; C088015:benzothiophene