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Synfacts 2010(5): 0539-0539  
DOI: 10.1055/s-0029-1219689
Synthesis of Materials and Unnatural Products
© Georg Thieme Verlag Stuttgart ˙ New York

New Heteroarene Cores for Organic Semiconductors

Contributor(s): Timothy M. Swager, Stefanie A. Sydlik
S. Shinamura, E. Miyazaki, K. Takimiya*
Hiroshima University, Japan
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Publikationsdatum:
22. April 2010 (online)

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Significance

The authors present a convenient four-step synthesis of naphtho[1,2-b:5,6-b’]di-thiophene (NDT) and -diselenophene (NDS) derivatives. This methodology presents the first synthetically convenient route to these core structures. The protocol for the thiophene annulation step was recently developed for mono-, bis-, and tris-annulated derivatives of the benzene group (T. Kashiki et al. Org. Lett. 2009, 11, 2473).