## Abstract Carbonβ13 NMR study of 4(5)βvinylβ1,2,3βtriazole in dimethylformamide at β55Β°C allows direct observation of the three separate tautomers. The ^13^C chemical shift values of the three forms, as well as their percentages in the tautomeric mixture, are given.
13C?H coupling constants as a tool in tautomerism studies of 1,2,3-triazole, 1,2,4-triazole, and tetrazole
β Scribed by Begtrup, Mikael
- Book ID
- 121483517
- Publisher
- Royal Society of Chemistry
- Year
- 1976
- Tongue
- English
- Weight
- 674 KB
- Volume
- 6
- Category
- Article
- ISSN
- 1472-779X
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π SIMILAR VOLUMES
## Abstract The ^1^H and ^13^C NMR spectra of some novel 1,2,4βtriazolo [1,3] thiazinoquinoline isomeric pairs are interpreted in terms of structural assignments. The structure of most compounds has been confirmed by NOE difference spectroscopy. Characteristic differences have been observed in both
## Dedicated to Professor G. Smets on the occasion of his 75th birthday The title compounds have been analyzed by 13C NMR spectroscopy and compared with the N-3 methyl and O/S alkyl derivatives. The mesoionic structures 2a,b are rejected in favour of la,b on the basis of the 2Jc5 = CH coupling con