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Carbon-13 NMR spectra of imidazole 1-oxides. Comparison with the parent imidazoles

✍ Scribed by J. Alcázar; A. de la Hoz; M. Begtrup

Book ID
101250791
Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
230 KB
Volume
36
Category
Article
ISSN
0749-1581

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✦ Synopsis

The 13C chemical shifts and CÈH coupling constants of a series of imidazole 1-oxides were compared with those of the parent imidazoles and imidazolium salts in order to show the inÑuence of N-oxidation on these parameters. The 13C chemical shifts can be related to the electron density at the carbon atoms whereas long range CÈH coupling constants can be related to the relative localization or delocalization of the n system in imidazoles, imidazolium salts and imidazole N-oxides.

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