Synthesis and Characterization of Some Coumarin Fluorescent Dyes
نویسنده
چکیده
The synthesis of some fluorescent coumarin dyes derived from coumarin-3-carboxylic acid were described.The new dyes are obtained by condensation of coumarin – 3 carboxylic acid derivatives with para substituted ortho phenylenediamines and cyclisation of the mono condensed ortho phenylenediamines in an acid medium. The obtained dyes were characterized from their physico-chemical point of view by elemental analysis, UV-VIS, IR ,H NMR spectra.
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