## Abstract Configurations and preferred conformations of a number of hexahydro[1,3]thiazolo[3,2β__a__]pyridines have been assigned on the basis of their ^1^H and ^13^C NMR spectra. The conformational preferences of these compounds have been interpreted in terms of the minimization of dipolar type
1H and 13C NMR study of substituted 3-OH pyridines
β Scribed by D.G. De Kowalewski; C. De Los Santos
- Book ID
- 107803281
- Publisher
- Elsevier Science
- Year
- 1990
- Tongue
- English
- Weight
- 480 KB
- Volume
- 221
- Category
- Article
- ISSN
- 0022-2860
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
## Abstract ^1^H, ^13^C and ^17^O NMR spectra for 22 substituted nitropyridines were measured and their ^1^H NMR spectra were analysed. The most significant variations in the NMR parameters are found for isomeric hydroxy derivatives, owing to the possibility of ketoβenol tautomerism. The prevalence
The tetrazole-azide tautomerization of some halogen-substituted tetrazolo [1,5-a]pyridines was examined by IR spectroscopy at ambient temperature and by 1 H, 13 C and 15 N NMR spectroscopy at various temperatures. The tetrazolopyridines can exhibit equilibrium between the azide and the tetrazole for
A series of 14 3-substituted 4-oxoquinolones with or without a substituent (methyl, ethyl) in position 1 were prepared. Literature and measured data were used to study the inΓuence of the substituent on the shifts of carbon atoms of these compounds, which are model compounds for antibacterial drugs