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
Conformationally Restricted 2-Substituted Wyosine Derivatives. 1H, 13C, and 15N NMR Study
β Scribed by Daniel Baranowski; Bozenna Golankiewicz; Janez Plavec
- Publisher
- John Wiley and Sons
- Year
- 2004
- Weight
- 54 KB
- Volume
- 35
- Category
- Article
- ISSN
- 0931-7597
No coin nor oath required. For personal study only.
β¦ Synopsis
Abstract
For Abstract see ChemInform Abstract in Full Text.
π SIMILAR VOLUMES
The 1 H and 13 C NMR spectra of seven 2-substituted phenyl methyl sulphides were measured and their chemical shifts assigned on the basis of two-dimensional NMR techniques such as H,H-COSY and C,H-COSY. The chemical shifts of these sulphides were correlated with the appropriate SCS values of monosub
We report a 1 H, 13 C and 15 N NMR investigation of one symmetrically substituted 2,7-dichloro and two unsymmetrically substituted 2-chloro and 4-bromo DMAN [1,8-bis(dimethylamino)naphthalene] proton sponges and their protonated salts. From a consideration of the NMR data reported we conclude, that
C and 15 N NMR data are reported for nine azoloazines. From the results obtained it is found that the 15 N chemical shifts are particularly well placed to provide reliable data on both the structures of the compounds studied and on their potential to undergo valence and prototropic tautomerism. Of p
The 1 H and 13 C NMR spectra of some 6-substituted 2naphthyl methyl sulphides were assigned unambiguously using NOE and two-dimensional NMR spectral techniques and the influence of substituents on the chemical shifts is discussed.