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Pyrylocyanines. 19. Symmetrical pyrylocyanines based on 3,4-polymethylene-2,6-diphenylpyrylium salts

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Chemistry of Heterocyclic Compounds Aims and scope

Abstract

Symmetrical 2,6,2′,6′-tetraphenyl-substituted pyrylo-4- and thiopyrylo-4-cyanines in which both α positions of the polymethine chain are bonded to the β positions of the heterocyclic residues by ethylene or trimethylene groups were synthesized. The introduction of bridged groupings gives rise to a bathochromic effect, which is greater for ethylene groups than for trimethylene groups.

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Literature cited

  1. I. M. Gavrilyuk, A. A. Ishchenko, M. A. Kudinova, and A. I. Tolmachev, Khim. Geterotsikl. Soedin., No. 9, 1189 (1983).

    Google Scholar 

  2. M. A. Kudinova, N. A. Derevyanko, G. G. Dyadyusha, A. A. Ishchenko, and I. I. Tolmachev, Khim. Geterotsikl. Soedin., No. 9, 1195 (1981).

    Google Scholar 

  3. Japan Photosensitive Dyes Co., Ltd., Japanese Patent No. 8130, 970 [sic] (Japan Kokai); Chem. Abstr., 95, 115298 (1981).

    Google Scholar 

  4. A. T. Balaban and C. D. Nenitzescu, J. Chem. Soc., 3561 (1961).

  5. A. I. Kiprianov, in: Introduction to the Electronic Theory of Organic Chemistry [in Russian], Naukova Dumka, Kiev (1975), p. 142.

    Google Scholar 

  6. G. A. Reynolds, Synthesis, No. 10, 638 (1975).

    Google Scholar 

  7. G. N. Dorofeenko, S. P. Safaryan, and V. I. Dulenko, Zh. Obshch. Khim., 36, 811 (1966).

    Google Scholar 

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See [1] for communication 18.

Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 4, pp. 451–454, April, 1984.

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Kudinova, M.A., Kurdyukov, V.V., Ishchenko, A.A. et al. Pyrylocyanines. 19. Symmetrical pyrylocyanines based on 3,4-polymethylene-2,6-diphenylpyrylium salts. Chem Heterocycl Compd 20, 359–362 (1984). https://doi.org/10.1007/BF00513844

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  • DOI: https://doi.org/10.1007/BF00513844

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