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    • Fixation of the aromatic double bonds in the coumarin ring system

      S Rangaswami T R Seshadri

      Volume 7 Issue 1 January 1938 pp 8-12

    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/seca/007/01/0008-0012

    • Keywords

       

      Coumarin; Acetyl Derivative; Ferric Chloride Solution; Mercuric Acetate; Hydroxy Compound

    • Abstract

       

      The behaviour of 7-hydroxy-coumarin indicates that there exists a double bond between 7 and 8 positions. But 7-hydroxy-4: 8-dimethyl-coumarin couples with diazocompounds and undergoes mercuration in the benzene nucleus. Its acetyl derivative undergoes the Fries migration and its allyl ether the Claisen transformation. It is therefore concluded that the nuclear double bonds are not fixed and are capable of assuming alternative positions.

    • Author Affiliations

       

      S Rangaswami1 T R Seshadri1

      1. Department of Chemistry, Andhra University, Waltair

    • Dates

       
      Published
      January 1938
      Manuscript received
      18 December 1937
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