Abstract
Glutaconic dialdehyde dianil salts, the α,α′-carbon atoms of which are included in dihydropyran, dihydrothiapyran, or N-methyltetrahydropyridine rings, were synthesized. Tricarbocyanine dyes with epoxydimethylene, epithiodimethylene, or N-methylepiminodimethylene groupings were synthesized by condensation of the dianil salts with a 2-methylbenzothiazole quaternary salt. The color of the dyes is discussed.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 2, pp. 175–178, February, 1976.
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Tolmachev, A.I., Slominskii, Y.L., Belaya, Z.N. et al. Tricarbocyanines with dihydropyran, dihydrothiapyran, and N-methyltetrahydropyridine rings in the chromophore. Chem Heterocycl Compd 12, 153–156 (1976). https://doi.org/10.1007/BF00523957
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DOI: https://doi.org/10.1007/BF00523957