Abstract
Condensation of fluorine-containing anilines with paraldehyde gave quinaldine derivatives with CF3, CF3S, and CF3SO2 groups in the 6 position, from which carbocyanine, merocyanine, and styryl dyes were synthesized. Fluorine-containing groups lower the basicity of quinaldine by 0.7–2.0 pKa units and lead to deepening of the color of the dyes.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 1, pp. 76–78, January, 1978.
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Krainer, Z.Y., Gudz', P.F. & Yagupol'skii, L.M. Quinaldine derivatives with fluorine-containing substituents and cyanine dyes based on them. Chem Heterocycl Compd 14, 60–62 (1978). https://doi.org/10.1007/BF00635945
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DOI: https://doi.org/10.1007/BF00635945