A new synthesis of catenarin and erythroglaucin

  • K. Chandrasenan
  • S. Neelakantan
  • T. R. Seshadri


A convenient synthesis, following suggested path of biogenesis, of catenarin and erythroglaucin has been made. It involves nuclear oxidation of the corresponding benzoyl benzoic acid. This reaction and the following ring closure give very good yields of catenarin dimethyl ether. Complete demethylation yields catenarin and partial demethylation erythroglaucin which can also be formed by the partial methylation of catenarin.


Anthraquinone Emodin Phthalic Anhydride Hydrobromic Acid Anhydrous Potassium Carbonate 
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Copyright information

© Indian Academy of Sciences 1960

Authors and Affiliations

  • K. Chandrasenan
    • 1
  • S. Neelakantan
    • 1
  • T. R. Seshadri
    • 1
  1. 1.Department of ChemistryUniversity of DelhiDelhi

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