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      Permanent link:
      https://www.ias.ac.in/article/fulltext/seca/026/03/0189-0196

    • Keywords

       

      Flavonol; Fisetin; Anhydrous Potassium Carbonate; Dimethyl Sulphate; Alcoholic Ferric Chloride

    • Abstract

       

      The synthesis of some flavonols with only one hydroxy group in the 5-position of the benzo-pyrone part has been effected starting from the monomethyl ether of 2-acetyl resorcinol and adopting the chalkone method of Kostanecki. The mono-methyl ether of 2-acetyl resorcinol is condensed with benzaldehyde, anisaldehyde and veratric aldehyde and the resulting chalkones converted into flavanones and flavonols. Thus 3∶5-dihydroxy-, 3∶5∶4′-trihydroxy-, and 3∶5∶3′∶4′-tetrahydroxy flavones, their methyl ethers and acetates have been prepared and their properties studied. These flavonols differ markedly from the isomeric compounds containing only one hydroxyl group in the 7-position of the benzopyrone part.

    • Author Affiliations

       

      T R Seshadri1 V Venkateswarlu1

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

       
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