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      Permanent link:
      https://www.ias.ac.in/article/fulltext/jcsc/103/02/0155-0160

    • Keywords

       

      Cinnamanilides; s-cis ands-trans forms; stability of conformers; β-carbon and nitrogen atoms; electrostatic repulsions

    • Abstract

       

      The conformational analysis of cinnamanilides has been carried out using IR spectroscopy. All the anilides studied were found to exist as equilibrium mixtures ofs-cis ands-trans forms in benzene.

      Thes-cis form was predominant over thes-trans in all the anilides except in thep-nitro anilide in which thes-trans form was predominant. The relative stabilities of the conformers were found to depend upon the electrostatic repulsions between the anilide nitrogen and the β-carbon atom in thes-trans form and those between the π-electrons of the C=O and C=C bonds in thes-cis form.

    • Author Affiliations

       

      G Venkateshwarlu1 B Subrahmanyam1

      1. Department of Chemistry, Osmania University, Hyderabad - 500007, India
    • Dates

       
  • Journal of Chemical Sciences | News

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