Treatment of 3-aryl- and 3-heteroarylindoles with propargyl ethers under indium catalysis successfully provided aryl- and heteroaryl[c]carbazoles, which were found to be more efficient emitters compared with the corresponding [a]-analogs.
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Indium-catalyzed annulation of 3-aryl- and 3-heteroarylindoles with propargyl ethers: synthesis and photoluminescent properties of aryl- and heteroaryl[c]carbazoles
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a
Department of Applied Chemistry, School of Science and Technology, Meiji University, 1-1-1 Higashimita, Tama-ku, Japan
E-mail: tsuchimo@isc.meiji.ac.jp
E-mail: tsuchimo@isc.meiji.ac.jp
b
Graduate School of Materials Science, Japan Advanced Institute of Science and Technology, Asahidai, Nomi, Japan
c
Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Japan
E-mail: shirakawa@kuchem.kyoto-u.ac.jp
E-mail: shirakawa@kuchem.kyoto-u.ac.jp
Org. Biomol. Chem., 2013,11, 1456-1459
DOI: 10.1039/C3OB27407A
Received 12 Dec 2012, Accepted 11 Jan 2013
First published online 11 Jan 2013
Organic & Biomolecular Chemistry
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