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l, 9-Substituted fluorenes

IV. Cyanine dyes, derivatives of pyridazino [4, 5, 6- m, l ]-fluorene

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Chemistry of Heterocyclic Compounds Aims and scope

Abstract

The synthesis of 2-methyl (phenyl)-2, 3H-pyridazino-[4, 5, 6-m- l] fluorene-3-methylthionium methylsulfates and of derivatives with substituents in the fluorene ring, is described. Reaction of the latter with heterocyclic hydrazones, and also with compounds containing an active methylene or methyl group, gives cyanine dyes. The electronic spectra of the dyes are measured.

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References

  1. N. S. Dokunikhin and S. A. Mikhalenko, ZhOKh, 33, 1974, 1963.

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  2. N. S. Dokunikhin and S. A. Mikhalenko, Author's Certificate 164604, Byull. izobr. no. 16, 1964.

  3. N. S. Dokunikhin and S. A. Mikhalenko, KhGS [Chemistry of Heterocyclic Compounds], p. 598, 1965.

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Authors and Affiliations

  1. Organic Intermediates and Dyes Scientific Research Institute, Moscow

    N. S. Dokunikhin & S. A. Mikhalenko

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  1. N. S. Dokunikhin
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  2. S. A. Mikhalenko
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For Part III see [3].

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Dokunikhin, N.S., Mikhalenko, S.A. l, 9-Substituted fluorenes. Chem Heterocycl Compd 2, 319–322 (1967). https://doi.org/10.1007/BF00742378

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  • DOI: https://doi.org/10.1007/BF00742378

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