• Synthesis of isocarajuretin hydrochloride

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/seca/038/04/0288-0293

    • Keywords

       

      Flavone; Aqueous Sodium Hydroxide; Amyl Alcohol; Hydriodic Acid; Aqueous Sodium Carbonate

    • Abstract

       

      7-Hydroxy-5:8:4′-trimethoxy flavylium chloride has now been prepared and subjected to demethylation with hydriodic acid. The resulting flavylium iodide and the colour-base (Isocarajuretin) and the flavylium chloride obtained from it, are different from carajuretin and its salts. Hence it is concluded that no isomeric change takes place during the demethylation of derivatives of 5:7:8-hydroxy-flavylium salts related to flavones, supporting the constitution of carajurin, given by Chapman, Perkin and Robinson.

    • Author Affiliations

       

      L Ponniah1 T R Seshadri1

      1. From the Department of Chemistry, University of Delhi, India
    • Dates

       
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