Visible Light Photocatalytic Synthesis of Benzothiophenes
Durga Prasad Hari, Thea Hering and Burkhard König*
*Institut für Organische Chemie, Universität Regensburg,
Universitätsstrasse 31, D-93053 Regensburg, Germany, Email: Burkhard.Koenig
chemie.uni-regensburg.de
D. P. Hari, T. Hering, B. König, Org. Lett., 2012, 14, 5334-5337.
DOI: 10.1021/ol302517n
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Abstract
A photocatalytic radical annulation process of o-methylthio-arenediazonium salts with alkynes yields substituted benzothiophenes regioselectively. 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.
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Key Words
ID: J54-Y2012-3400
