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The NMR spectra of some fluorinated pyridine derivatives

✍ Scribed by W. A. Thomas; G. E. Griffin

Publisher
John Wiley and Sons
Year
1970
Tongue
English
Weight
472 KB
Volume
2
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

The ^1^H and ^19^F spectra of a variety of mono‐ and di‐ fluorinated pyridines are examined, and compared with the corresponding spectra of the pyridinium ions. The magnitudes and signs of the ^1^H^19^F coupling constants are in general in accord with those observed for the corresponding ^1^H^1^H couplings, with an exaggerated range. Large changes in the NMR parameters are observed on protonation of the nitrogen, ^3^J(HF) changing sign in some of the α‐fluoropyridine derivatives.

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