NMR Detection of Isomers Arising from Restricted Rotation of the C-N Amide Bond of N-Formyl-o-toluidine and N,N’-bis-Formyl-o-tolidine

NMR Detection of Isomers Arising from Restricted Rotation of the C-N Amide Bond of N-Formyl-o-toluidine and N,N’-bis-Formyl-o-tolidine

Full and unambiguous assignment of all 1H- and 13C-NMR resonances of the isomers due to restricted C-N amide bond rotation of N-formyl-o-toluidine and N,N'-bis-formyl-o-tolidine in DMSO-d6 is reported. The cis-isomer predominates in the equilibrium mixture of both compounds as 1D-NOE difference...

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Bibliographic Details
Main Authors: Noemí Waksman, Ricardo Gómez-Flores, Reyes Tamez-Guerra, Cristina Rodríguez-Padilla, Adolfo Caballero-Quintero, Juan F. Colunga-Valladares, Ramiro Quintanilla-Licea
Format: Article
Language:English
Published: MDPI AG 2002-08-01
Series:Molecules
Subjects:
Amide bond
restricted rotation
1H-NMR
13C-NMR
NOE
Online Access:http://www.mdpi.com/1420-3049/7/8/662/

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