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Molecules 2009, 14(3), 1013-1031; doi:10.3390/molecules14031013
Article

Brominated Thiophenes as Precursors in the Preparation of Brominated and Arylated Anthraquinones

1,* , 2 and 3
1 Interdisciplinary Graduate School of Engineering Sciences Kyushu University, 6-1, Kasuga-koh-en, Kasuga-shi, Fukuoka 816-8580, Japan 2 Institute of Materials Chemistry and Engineering, Kyushu University, 6-1, Kasuga-koh-en, Kasugashi, Fukuoka 816-8580, Japan 3 Department of Physical Chemistry, University of Alicante, E-03080 Alicante, Spain
* Author to whom correspondence should be addressed.
Received: 21 January 2009 / Revised: 18 February 2009 / Accepted: 24 February 2009 / Published: 4 March 2009
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Abstract

Brominated anthraquinones can be synthesized directly from bromothiophenes when these are reacted with 1,4-naphthoquinones in the presence of meta-chloroperoxybenzoic acid. The bromoanthraquinones are versatile building blocks in the preparation of arylated anthraquinones and of extended π-systems with interspersed anthraquinone units.
Keywords: Anthraquinone; Oxidative cycloaddition; Suzuki cross coupling; UV spectroscopy Anthraquinone; Oxidative cycloaddition; Suzuki cross coupling; UV spectroscopy
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Thiemann, T.; Tanaka, Y.; Iniesta, J. Brominated Thiophenes as Precursors in the Preparation of Brominated and Arylated Anthraquinones. Molecules 2009, 14, 1013-1031.

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