• Nuclear oxidation in flavones and related compounds - Part XXXIV. Para-oxidation in the side-phenyl nucleus: Preparation of 6′-hydroxy-myricetin

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      https://www.ias.ac.in/article/fulltext/seca/033/03/0151-0154

    • Keywords

       

      Flavone; Myricetin; Fisetin; Anhydrous Potassium Carbonate; Dimethyl Sulphate

    • Abstract

       

      Para oxidation in the side-phenyl nucleus has now been investigated using potassium persulphate and 3′-hydroxy-3:5:7:4′:5′-pentamethoxy flavone obtained conveniently from cannabiscitrin. The resulting quinol on methylation yields 3:5:7:3′:4′:5′:6′-heptamethoxy flavone and on demethylation 6′-hydroxy myricetin which is the first example of a flavone having four hydroxyl groups in the side-phenyl nucleus.

    • Author Affiliations

       

      K J Balakrishna1 N Prabhakara Rao1 T R Seshadri1

      1. Departments of Chemistry, Andhra and Delhi Universities, India
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