• Formation of quinones by oxidative dealkylation - Part III. Alkali fission of gardenin

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    • Keywords


      Flavone; Potash; Potassium Salt; Gardenin; Gossypetin

    • Abstract


      The observation of Bose and Nath regarding the fission of gardenin with alcoholic potash is confirmed. The formation of ω-methoxy-3∶6-dihydroxy-2∶5-quino-acetophenone (II) in this reaction constitutes an example of oxidative demethylation by means of alcoholic potash. The same compound can be obtained from methyl gardenin through the stages (III) and (IV). Analogous partial methyl ethers of flavones with a free 5-hydroxyl are resistant to this treatment.

    • Author Affiliations


      K J Balakrishna1 T R Seshadri1

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


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