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      Permanent link:
      https://www.ias.ac.in/article/fulltext/seca/029/01/0009-0015

    • Keywords

       

      Flavonol; Wogonin; Aqueous Sodium Hydroxide; Mixed Melting Point; Anhydrous Potassium Carbonate

    • Abstract

       

      The following three partial methyl ethers of flavonols which are derivatives of naturally occurring monoglucosides having only one free hydroxyl group have been conveniently synthesised by using the method of partial benzylation: (1) 3 ∶ 5 ∶ 4′-O-trimethyl-kæmpferol derived from populnin and related glycosides, (2) 3 ∶ 5 ∶ 3′ ∶ 4′-O-tetramethyl quercetin derived from quercimeritrin and (3) 3 ∶ 5 ∶ 7 ∶ 3′ ∶ 4′-O-pentamethyl gossypetin derived from gossypin.

    • Author Affiliations

       

      S Rajagopalan1 P Ramachandra Rao1 K Visweswara Rao1 T R Seshadri1

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

       
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