Convenient Synthesis of Benzo[b]thiophene-5,6-dicarboximide Derivatives and Their Photophysical Properties
Modern Chemistry
Volume 4, Issue 5, October 2016, Pages: 45-51
Received: Oct. 5, 2016; Accepted: Oct. 18, 2016; Published: Nov. 10, 2016
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Authors
Naoki Kobayashi, Department of Chemistry, Faculty of Science, Shinshu University, Nagano, Japan
Shinya Yamamoto, Department of Chemistry, Faculty of Science, Shinshu University, Nagano, Japan
Haruki Shimosasa, Department of Chemistry, Faculty of Science, Shinshu University, Nagano, Japan
Mitsunori Oda, Department of Chemistry, Faculty of Science, Shinshu University, Nagano, Japan
Ryuta Miyatake, Centre for Environmental Conservation and Research Safety, University of Toyama, Toyama, Japan
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Abstract
Phosphine-assisted annulation of thiophene-2,3-dicarbaldehyde with N-substituted maleimides provided the N-substituted benzo[b]thiophene-5,6-dicarboximides in good to high yields. Introduction of cyano and aryl groups to the thiophene moiety of the N-cyclohexyl product was achieved by metal-catalyzed coupling reactions via its bromo derivative. Photophysical properties of the products were also reported.
Keywords
Annulation, Phosphine, Copper-Mediated Cyanation, Mizoroki-Heck Reaction, Emission
To cite this article
Naoki Kobayashi, Shinya Yamamoto, Haruki Shimosasa, Mitsunori Oda, Ryuta Miyatake, Convenient Synthesis of Benzo[b]thiophene-5,6-dicarboximide Derivatives and Their Photophysical Properties, Modern Chemistry. Vol. 4, No. 5, 2016, pp. 45-51. doi: 10.11648/j.mc.20160405.11
Copyright
Copyright © 2016 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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