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Pyrylocyanines

VIL Xanthylo-, thioxanthylo-, and selenoxanthylocyanines

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Chemistry of Heterocyclic Compounds Aims and scope

Abstract

Trimethinecyanines with symmetrical and unsymmetrical structures containing xanthylium, thioxanthylium, and selenoxanthylium residues were synthesized. It was shown by the method of deviations that the “basicities” of the residues of the investigated three-ring heterocycles in the dyes change in the order O > S > Se. In series of 2,6-diphenyl-substituted 4-pyrylo-, 4-thiopyrylo-, and 4-selenopyrylotrimethinecyanines replacement of the phenyl substituents by annelated benzene rings affects the color to a considerably lesser degree than analogous replacement in 4-pyridocyanines.

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Authors and Affiliations

  1. Institute of Organic Chemistry, Academy of Sciences of the Ukrainian SSR, Kiev

    A. I. Tolmachev, N. A. Derevyanko & M. A. Kudinova

Authors
  1. A. I. Tolmachev
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  2. N. A. Derevyanko
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  3. M. A. Kudinova
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Additional information

See [1] for communication VI

Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 5, pp. 617–622, May, 1975.

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Tolmachev, A.I., Derevyanko, N.A. & Kudinova, M.A. Pyrylocyanines. Chem Heterocycl Compd 11, 539–543 (1975). https://doi.org/10.1007/BF00480473

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  • DOI: https://doi.org/10.1007/BF00480473

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