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Thiapyrylocyanines

I. Thiaflavylocyanines

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Chemistry of Heterocyclic Compounds Aims and scope

Abstract

The reaction of thiaflavones with methylmagnesium iodide has yielded 4-methylthiaflavylium salts, from which a number of symmetrical and unsymmetrical polymethine dyes have been obtained. The thiaflavylocyanines have considerably deeper colors than the flavylocyanines. The thiaflavylium styryl dyes, like the flavylium analogs, have negative deviations. It follows from the results on the deviations that in the polymethine dyes the thiaflavylium nucleus behaves as less basic than the flavylium nucleus.

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Authors and Affiliations

  1. Institute of Organic Chemistry AS UkrSSR, Kiev

    M. A. Kudinova

Authors
  1. A. I. Tolmachev
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  2. M. A. Kudinova
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Tolmachev, A.I., Kudinova, M.A. Thiapyrylocyanines. Chem Heterocycl Compd 5, 594–597 (1969). https://doi.org/10.1007/BF00957366

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  • DOI: https://doi.org/10.1007/BF00957366

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