• Synthetic experiments in the benzopyrone series - Part LVIII. Syntheses of 5∶7-dimethoxy-6-hydroxy isoflavone and muningin

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    • Keywords


      Isoflavone; Dimethyl Sulphate; Ethyl Formate; Synthetic Experiment; Hydriodic Acid

    • Abstract


      Of the two methods of obtaining 7-methyl ethers of 5∶6∶7-hydroxy isoflavones partial methylation employing sodium bicarbonate is more convenient. Thus 7-methoxy-5∶6-dihydroxy and 7-methoxy-5∶6∶4′-trihydroxy isoflavones have been prepared. These could be partially acetylated, methylated in the 5-position and finally deacetylated to yield 5∶7-dimethoxy-6-hydroxy isoflavone and muningin respectively.

    • Author Affiliations


      M L Dhar1 T R Seshadri1

      1. Department of Chemistry, University of Delhi, Delhi-8
    • Dates


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