FIELD: polyfunctional heterocyclic compounds.
SUBSTANCE: invention relates to a number of new polyfunctional heterocyclic compounds - derivatives of 2-(pyrano[3,2-c]chromen-5-yl)acetic acid Ia-f and a method for their preparation, which consists in the interaction of 3-vinylchromones and cyanoacetamide in ethanol at a temperature of 20 °C catalyzed by tertiary amines - triethylamine (TEA) or Hunig's base (diisopropylethylamine, DIPEA).
EFFECT: new derivatives of 2-(pyrano[3,2-c]chromen-5-yl)acetic acid Ia-f with fluorescent properties have been obtained, which can be used as fluorescent dyes and probes.
3 cl, 1 tbl, 21ex
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