• Nuclear oxidation in flavones and related compounds - Part XLII. A synthesis of 6-hydroxy pyrylium salts of the gesneridin type

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    • Keywords


      Concentrate Sulphuric Acid; Colour Base; Pyrylium; Potassium Persulphate; Aqueous Sodium Carbonate

    • Abstract


      Polyhydroxy benzadehydes are prepared by nuclear oxidation ofo-hydroxy benzaldehyde derivatives with alkaline persulphate and condensed withp-hydroxy andp-methoxy acetophenones to yield 6-hydroxy pyryium salts.

    • Author Affiliations


      L Ponniah1 T R Seshadri1

      1. Department of Chemistry, Delhi Univeristy, India
    • Dates


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