A detailed analysis of the I3C NMR spectra of the 1-N-and 3-N-methyl derivatives of lH-2-(2,4-dimethoxyphenyI)imidazo[4,5-~]pyridine, utilizing long-range couplings and 2D 'H-I3C correlation experiments, has led to an unambiguous assignment of all carbons. Comparison of these definitive assignments
13C NMR study of some sulphur-containing 5-trifluoromethylpolychloro-pyridines
✍ Scribed by Nikolay N. Sveshnikov; Alexey M. Sipyagin; Olga V. Dobrokhotova
- Publisher
- John Wiley and Sons
- Year
- 1995
- Tongue
- English
- Weight
- 234 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0749-1581
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✦ Synopsis
Abstract
A ^13^C NMR study of a series of novel 2,4‐thio‐substituted 5‐trifluoromethylpoly‐chloropyridines was carried out. The carbon chemical shifts and external long‐range ^13^C, ^19^F NMR coupling constants between the pyridine ring carbons and the trifluoromethyl group are reported.
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