J. Anusuya

Annamalai University , Annāmalainagar, State of Tamil Nadu, India

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Publications (2)0.85 Total impact

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    ABSTRACT: Five 4-dicyanomethylene derivatives 6–10, N-cyanoacetyl-cis-2,6-diphenylpiperidin-4-one 11 and 4-cyano(ethoxycarbonyl)-methylene-cis-2,6-bis(o-chlorophenyl)piperidine 12 were synthesised by condensing the appropriate piperidin-4-ones 13–17 with malononitrile/ethylcyanoacetate and their 1H and 13C NMR spectra were recorded. The 1H-1H COSY spectrum for 6 and NOESY spectra for 8, 10, and 11 were also recorded. Based on coupling constants and the results obtained from NOESY spectra boat conformation for 10 and epimerised chair conformations for 8 and 9 have been proposed. Other derivatives adopt normal chair conformations. Theoretical calculations and the 1H and 13C chemical shifts also support the above conformations. Mass spectra were also recorded for 6–12.
    Journal of Structural Chemistry 05/2008; 49(3):448-458. · 0.50 Impact Factor
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    ABSTRACT: In the title molecule, C22H20N2O2S, the tetrahydrothiopyran ring adopts a chair conformation. The dicyanomethylene group and the 4-methoxyphenyl groups have equatorial orientations. A crystallographic mirror plane bisects the molecule, passing through the S and opposite C atoms of the central ring.
    Acta Crystallographica Section E Structure Reports Online 10/2007; 63(10). · 0.35 Impact Factor

Publication Stats

3 Citations
0.85 Total Impact Points

Institutions

  • 2008
    • Annamalai University
      • Department of Chemistry
      Annāmalainagar, State of Tamil Nadu, India
  • 2007
    • International Union of Toxicology
      Reston, Virginia, United States