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Condensed heteroaromatic systems including a thiophene ring. XXXIII. Catalytic liquid-phase oxidation of 3-methyl-substituted thieno[2,3-b]thiophenes and thieno[3,2-b]thiophenes

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Chemistry of Heterocyclic Compounds Aims and scope

Abstract

It is shown that the catalytic liquid-phase oxidation of 3-methylthieno[2,3-b]-thiophene and 3-methylthieno[3,2-b]thiophene in acetic acid in the presence of cobalt acetate and sodium bromide at 90–110° gives thieno[2,3-b]thiophene-3-carboxylic acid and thieno[3,2-b]-3-formylthiophene, respectively.

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Authors and Affiliations

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

    V. P. Litvinov, T. V. Shchedrinskaya, P. A. Konstantinov & Ya. L. Gol'dfarb

  2. Moscow Physicotechnical Institute, USSR

    V. P. Litvinov, T. V. Shchedrinskaya, P. A. Konstantinov & Ya. L. Gol'dfarb

Authors
  1. V. P. Litvinov
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  2. T. V. Shchedrinskaya
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  3. P. A. Konstantinov
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  4. Ya. L. Gol'dfarb
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Additional information

See [1] for communication XXXII.

Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 4, pp. 492–498, April, 1975.

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Litvinov, V.P., Shchedrinskaya, T.V., Konstantinov, P.A. et al. Condensed heteroaromatic systems including a thiophene ring. XXXIII. Catalytic liquid-phase oxidation of 3-methyl-substituted thieno[2,3-b]thiophenes and thieno[3,2-b]thiophenes. Chem Heterocycl Compd 11, 431–436 (1975). https://doi.org/10.1007/BF00502429

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  • DOI: https://doi.org/10.1007/BF00502429

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