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    • Keywords


      4-Aryl-3,4-dihydrocoumarins; 3-methyl-coumarins; 3-methyl-thia-coumarins; 3-methyl-carbostyrils; dearylation by aluminum chloride

    • Abstract


      Reaction of 3,6-dimethyl-4-phenyl-3,4-dihydrocoumarin5a with anhydrous aluminum chloride gave 3,6-dimethyl-coumarin (6a); likewise, 6-chloro-3-methyl-coumarin (6b) was obtained from5b. Substituted 3-methyl-thiacoumarins (8a,b and 3-methyl-carbostyrils (10a-e) were prepared from the reactions of the respectivea-methyl-cinnamoyl derivatives (7a,b and (9a-e), of thiophenols and anilines.

    • Author Affiliations


      T Manimaran1 M Natarajam1 V T Ramakrishnan1 2

      1. Department of Organic Chemistry, University of Madras, Madras - 600 025
      2. Department of Chemistry, University of Madras PG Centre, Coimbatore - 641 041
    • Dates

  • Journal of Chemical Sciences | News

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