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Polymethine dyes — Furo[3,2-f]quinol-7-yl and furo[3,2-f]quinol-9-yl derivatives

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Chemistry of Heterocyclic Compounds Aims and scope

Abstract

New heterocyclic bases — 7- and 9-methylfuro[3,2-f]quinolines — were synthesized by condensation of 5-aminobenzofuran double tin hydrochloride salt with paraldehyde in dilute hydrochloric acid and with methyl vinyl ketone in ethanol in the presence of ferric chloride and zinc chloride. Polymethine dyes of various types were obtained from the quaternary salts of the synthesized bases. The introduction of a furan ring in the 5,6 position of quino-2- and quino-4-carbocyanines gives rise to a smaller bathochromic effect than the analogous introduction of a thieno and, particularly, a benzo group.

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Authors and Affiliations

  1. All-Union State Scientific-Research and Design Institute of the Photographic-Chemical Industry, 125167, Moscow

    P. I. Abramenko & V. G. Zhiryakov

Authors
  1. P. I. Abramenko
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  2. V. G. Zhiryakov
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 3, pp. 391–394, March, 1977.

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Abramenko, P.I., Zhiryakov, V.G. Polymethine dyes — Furo[3,2-f]quinol-7-yl and furo[3,2-f]quinol-9-yl derivatives. Chem Heterocycl Compd 13, 316–319 (1977). https://doi.org/10.1007/BF00470318

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  • DOI: https://doi.org/10.1007/BF00470318

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