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    • Keywords


      Coumarin; Chromones; Diazonium Salt; Pyrone Ring; Molecular Proportion

    • Abstract


      The 5-hydroxycoumarins behave very similar to 7-hydroxycoumarins in regard to azo-dye formation with one and more than two molecular proportions of diazotisedp-nitraniline. The significance of these results is discussed.

      The authors desire to express their grateful thanks to Prof. T. R. Seshadri for his kind interest in this work.

    • Author Affiliations


      S Rangaswami1 2 K Ranganadha Rao1 2

      1. Department of Chemistry, Andhra University, Waltair
      2. Madras
    • Dates


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