Singha, NC and Anand, J and Sathyanarayana, DN (1998) Proton NMR spectral studies on N-(4-methylphenyl)-2- and 3-pyridinecarboxamides. In: Indian Journal of Chemistry - Section A: Inorganic, Physical, Theoretical and Analytical Chemistry, 37 (10). pp. 882-886.Full text not available from this repository.
The H-1 NMR spectra of N-(4-methylphenyl)-2-pyridinecarboxamide and N-(4-methyl-phenyl)-3-pyridine carboxamide in CDCl3 and (CD3)(2)CO have been analysed with the help of the COSY spectra. Accurate H-1 chemical shifts and coupling constants have been obtained from the simulated spectra. From H-1 NMR and Nuclear Overhauser Enhancement (NOE) measurements the molecular conformations are inferred. The pyridyl ring is apparently coplanar with the amide group while the 3-pyridyl ring is nearly perpendicular to the amide plane so that the amide proton is nearer to the 2-pyridyl proton H2 than to H4. The orientation of the 4-methylphenyl group could not be determined.
|Item Type:||Journal Article|
|Additional Information:||Copyright of this article belongs to National Institute of Science Communication and Information Resources.|
|Department/Centre:||Division of Chemical Sciences > Inorganic & Physical Chemistry|
|Date Deposited:||09 Jun 2011 06:14|
|Last Modified:||09 Jun 2011 06:14|
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