1. Home
    2. Journals
    3. Proceedings – Section A
    4. Volume 24
    5. Issue 2

    • Fulltext

       

        Click here to view fulltext PDF


      Permanent link:
      https://www.ias.ac.in/article/fulltext/seca/024/02/0238-0242

    • Keywords

       

      Flavonol; Aqueous Sodium Hydroxide; Galangin; Benzyl Ether; Ketimine

    • Abstract

       

      A satisfactory procedure for the preparation of 2-hydroxy-ω∶3∶6-trimethoxy-4-benzyloxy-acetophenone is described. Oxidation of this to the 2∶5-dihydroxyketone (IV), its condensation with the anhydride and sodium salt of benzoic acid and subsequent demethylation yield 6∶8-dihydroxygalangin. This constitutes a simplified method for the synthesis of 5∶6∶7∶8-hydroxyflavonols and their methyl ethers.

    • Author Affiliations

       

      V D Nageswara Sastri1 T R Seshadri1

      1. Department of Chemistry, Andhra University, India

    • Dates

       
      Published
      August 1946
      Manuscript received
      6 May 1946
  •  

© 2021-2022 Indian Academy of Sciences, Bengaluru.

Contact | Site index