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Polymethine dyes — 4-methylbenzofuro- and 4-methylbenzoselenopheno[2,3-b]pyridine derivatives

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Chemistry of Heterocyclic Compounds Aims and scope

Abstract

Polymethine dyes of various types were obtained from quaternary salts of 4-methylbenzofuro- and 4-methylbenzoselenopheno[2,3-b]pyridines. It is shown that replacement of the vinylene group in the benzene ring of the benzo[h]-4-quinoline residue by an oxygen or selenium atom gives rise to a larger hypsochromic shift of the absorption maxima of the corresponding cyanine dyes than replacement by a sulfur atom. Dyes with benzofuro[2,3-b]-4-pyridine residues absorb in the shorter-wave region of the spectrum than benzothieno- and benzoselenopheno[2,3-b]pyridine derivatives.

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Authors and Affiliations

  1. All-Union State Scientific-Research and Design Institute of the Photographic Chemical Industry, Moscow

    P. I. Abramenko & Z. G. Zhiryakov

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  1. P. I. Abramenko
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  2. Z. G. Zhiryakov
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 10, pp. 1357–1360, October, 1976.

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Abramenko, P.I., Zhiryakov, Z.G. Polymethine dyes — 4-methylbenzofuro- and 4-methylbenzoselenopheno[2,3-b]pyridine derivatives. Chem Heterocycl Compd 12, 1125–1128 (1976). https://doi.org/10.1007/BF00945596

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  • DOI: https://doi.org/10.1007/BF00945596

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