Facile synthesis of [1]benzothieno[3,2-b]benzothiophene from o-dihalostilbenes

Masahiko Saito, Tatsuya Yamamoto, Itaru Osaka, Eigo Miyazaki, Kazuo Takimiya, Hirokazu Kuwabara, Masaaki Ikeda

Research output: Contribution to journalArticle

23 Citations (Scopus)


A convenient one-pot synthesis of [1]benzothieno[3,2-b]benzothiophene from readily available o-dihalostilbenes using combined reagents of sodium sulfide nonahydrate (Na2S·9H2O) or sodium hydrosulfide hydrate (NaSH·nH2O) and sulfur is described along with plausible reaction paths in this intriguing reaction.

Original languageEnglish
Pages (from-to)5277-5280
Number of pages4
JournalTetrahedron Letters
Issue number40
Publication statusPublished - 2010 Oct 6
Externally publishedYes

ASJC Scopus subject areas

  • Biochemistry
  • Drug Discovery
  • Organic Chemistry

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    Saito, M., Yamamoto, T., Osaka, I., Miyazaki, E., Takimiya, K., Kuwabara, H., & Ikeda, M. (2010). Facile synthesis of [1]benzothieno[3,2-b]benzothiophene from o-dihalostilbenes. Tetrahedron Letters, 51(40), 5277-5280. https://doi.org/10.1016/j.tetlet.2010.07.152