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

Abstract

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

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Cite this paper

@inproceedings{QuintanillaLicea2002NMRDO, title={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}, author={Ramiro Quintanilla-Licea and Juan F. Colunga-Valladares and Adolfo Caballero-Quintero and Cristina Rodr{\'i}guez-Padilla and Reyes Silvestre Tamez-Guerra and Ricardo Alberto Gomez-Flores and Noem{\'i} Waksman}, year={2002} }