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Condensed heteroaromatic systems that contain a thiophene ring

Communication 27. Synthesis of β-bromo-substituted thieno[2,3-b]thiophene and selenopheno[2,3-b]thiophene derivatives

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Bulletin of the Academy of Sciences of the USSR, Division of chemical science Aims and scope

Conclusions

  1. 1.

    The successive treatment at -70° of either 3,4-dibromothiophene or 3,4-dibromoselenophene with one equivalent of n-butyllithium, dimethylformamide and a second equivalent of n-butyllithium results in the exchange of one bromine atom and the adjacent hydrogen atom in theα-position, with a retention of the second bromine atom in the heterocycle.

  2. 2.

    A number ofβ-monobromo-substituted thieno[2,3-b]thiophene and selenopheno[2,3-b]thiophene derivatives was obtained.

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Authors and Affiliations

  1. N. D. Zelinskii Institute of Organic Chemistry, Academy of Sciences of the USSR, USSR

    Ya. L. Gol'dfarb, I. P. Konyaeva & V. P. Litvinov

Authors
  1. Ya. L. Gol'dfarb
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  2. I. P. Konyaeva
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  3. V. P. Litvinov
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Additional information

See [1] for Communication 26.

Translated from Izvestiya Akademii.Nauk SSSR, Seriya Khimichesaya, No. 7, pp. 1570–1574, July, 1974.

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Gol'dfarb, Y.L., Konyaeva, I.P. & Litvinov, V.P. Condensed heteroaromatic systems that contain a thiophene ring. Russ Chem Bull 23, 1488–1492 (1974). https://doi.org/10.1007/BF00929659

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  • DOI: https://doi.org/10.1007/BF00929659

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