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Communication | Regular issue | Vol 26, No. 7, 1987, pp.1793-1796
Published online, 1st January, 1970
DOI: 10.3987/R-1987-07-1793
Preparation of α-Quater-, α-Sexi-, and α-Octithiophenes

Juzo Nakayama, Toru Konishi, Shigeru Murabayashi, and Masamatsu Hoshino

*Department of Chemistry, Faculty of Science, Saitama University, Saitama, Saitama 338-8570, Japan


α-Quaterthiophene (1), α-sexithiophene (2), and α-octithiophene (3) (the highest member of α-oligothiophenes ever synthesized) were prepared from α-bithiophene, α-terthiophene, and α-quaterthiophene, respectively, via monobromination with N-bromosuccinimide followed by reductive coupling reaction with an activated nickel (0) reagent.