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Paper | Regular issue | Vol 78, No. 1, 2009, pp.127-138
Published online, 8th September, 2008
DOI: 10.3987/COM-08-11501
Preparation of Unsymmetrical 1,4-Bis[2-ethynyl-3-thienyl]benzene Derivatives

Kozo Toyota,* Yasutomo Tsuji, Kazuyuki Okada, and Noboru Morita

*Department of Chemistry, Graduate School of Science, Tohoku University, Aramaki, Aoba-ku, sendai 980-8578, Japan


Unsymmetrically substituted 1,4-bis(2-ethynyl-3-thienyl)benzene derivative was prepared, utilizing 1-bromo-4-(2-iodo-3-thienyl)benzene and 5-alkyl-3-bromo-2-ethynylthiophene derivatives as key intermediates.