• Fulltext


        Click here to view fulltext PDF

      Permanent link:

    • Keywords


      Amyl Alcohol; Carbonate Hydroxide; Pyrone Ring; Flavylium; Pyrylium Salt

    • Abstract


      Flavylium salts containing γ- and α-pyrone rings have been prepared by condensing 7-hydroxy-3-methoxy-flavone-8-aldehyde and umbelliferone-8-aldehyde with hydroxy-aceto-phenones or their acetyl derivatives. They are found to have very feeble tinctorial properties and their fluorescence in concentrated sulphuric acid is not marked. The salts readily lose halogen and undergo conversion into colour bases.

    • Author Affiliations


      L Ramachandra Row1 T R Seshadri1

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


© 2021-2022 Indian Academy of Sciences, Bengaluru.