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Study of the properties and structure of 6-substituted 2-thionolepidines

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Chemistry of Heterocyclic Compounds Aims and scope

Abstract

It has been shown that 2-thioquinolones are weaker conjugate acids and bases than 4-thioquinolones [1]. The UV spectra of solutions and the IR spectra of crystalline 6-substituted 2-thionolepidines confirm the predominance of the thione structure. It was found that 2-thioquinolones exist in the form of a dipolar ion. In contrast to 2-thiopyridones, 2-thioquinolones form derivatives of only the thiol form with methyl iodide, diazomethane, and acrylonitrile. The pK a (−H)+ values are correlated with the σJ constants.

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Authors and Affiliations

  1. Leningrad Pharmaceutical-Chemistry Institute, USSR

    D. I. Biskupskaya & A. V. Voropaeva

Authors
  1. D. I. Biskupskaya
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  2. A. V. Voropaeva
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 4, pp. 521–524, April, 1973.

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Biskupskaya, D.I., Voropaeva, A.V. Study of the properties and structure of 6-substituted 2-thionolepidines. Chem Heterocycl Compd 9, 481–484 (1973). https://doi.org/10.1007/BF00471531

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  • DOI: https://doi.org/10.1007/BF00471531

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