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Synfacts 2011(2): 0158-0158  
DOI: 10.1055/s-0030-1259256
Synthesis of Materials and Unnatural Products
© Georg Thieme Verlag Stuttgart ˙ New York

Facile Synthesis of Benzobisthioxanthene

Contributor(s): Timothy M. Swager, Stefanie A. Sydlik
C. Du, S. Ye, Y. Liu*, Y. Guo, T. Wu, H. Liu, J. Zheng, C. Cheng, M. Zhu, G. Yu
Institute of Chemistry, Chinese Academy of Sciences, Beijing, P. R. of China
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Publication History

Publication Date:
19 January 2011 (online)

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Significance

The authors synthesized a fused-seven-ring anthracene derivative with two sulfur bridges, benzobisthioxanthene (BTA), in three steps from commercially available 9,10-dibromo­anthracene. The key step is the acid-induced ­condensation of the aromatic methyl sulfoxides (2 → BTA), which proceeds in good yield (67%).