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      Permanent link:
      https://www.ias.ac.in/article/fulltext/seca/049/04/0234-0240

    • Keywords

       

      Emodin; Methyl Ether; Persulphate; Aqueous Sodium Hydroxide; Quinol

    • Abstract

       

      2-Methylanthraquinones with the 1∶4-dihydroxy system are conveniently prepared by the persulphate oxidation of the intermediate benzoylbenzoic acids and subsequent ring closure. 2-Methylquinizarin, islandicin and cynodontin have been prepared by this method as typical examples.

    • Author Affiliations

       

      S Neelakantan1 T R Rajagopalan1 T R Seshadri1

      1. Department of Chemistry, University of Delhi, Delhi
    • Dates

       
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