• Alkoxylation sites in naturally occurring coumarins using1H NMR

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/jcsc/102/06/0737-0740

    • Keywords

       

      Alkoxylation sites; coumarins; proton NMR

    • Abstract

       

      A comparison of1H NMR spectra of acetoxycoumarin and alkoxycoumarin shows that an aromatic proton para to the site of difference undergoes a larger change in chemical shift. In absence of a para proton,-ortho protons undergo this change. These help in locating alkoxylation sites in naturally occurring coumarins.

    • Author Affiliations

       

      S B Kalidhar1

      1. Department of Chemistry and Biochemistry, Haryana Agricultural University, Hisar - 125 004, India
    • Dates

       
  • Journal of Chemical Sciences | News

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