• 7-hydroxychromone-8-aldehydes and their conversion into chromono-7: 8-α-pyrones

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    • Keywords


      Acetic Anhydride; Hexamethylenetetramine; Anhydrous Sodium Acetate; Alcoholic Ferric Chloride; Eighth Position

    • Abstract


      Starting from 3-methoxy-7-hydroxyflavone, 2-methyl-3-methoxy-7-hydroxychromone and 7-hydroxyflavone aldehydes have been prepared. In these compounds the aldehyde groups occupy the eighth positions. By the action of sodium acetate and acetic anhyrdide the corresponding chromono-and flavono-α-pyrones have been synthesised.

    • Author Affiliations


      S Rangaswami1 T R Seshadri1

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


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