## Abstract __J__(^13^C^1^H) coupling constants for some methylβ and aminopyrimidines have been determined by ^13^C NMR. Both the oneβbond and longβbond and longβrange coupling constants follow general trends which can be summarized in a few simple rules. In particular, the ^3^__J__(Cβi,H) coupling
Proton and carbon-13 nuclear magnetic resonance studies of substituted pyrimidines. 2. Monoprotonation of methyl- and aminopyrimidines
β Scribed by Riand, J.; Chenon, M. T.; Lumbroso-Bader, N.
- Book ID
- 126198008
- Publisher
- American Chemical Society
- Year
- 1977
- Tongue
- English
- Weight
- 741 KB
- Volume
- 99
- Category
- Article
- ISSN
- 0002-7863
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π SIMILAR VOLUMES
Studies of line width and chemical shift us. temperature for amide and hydroxyl proton magnetic resonance signals from: barbituric acid, dialuric acid, parabanic acid, alloxan and alloxan monohydrate dissolved in anhydrous dimethyl sulfoxide-d6 are reported. The behavior of the amide signals shows t
## Abstract The ^13^C NMR spectra of methyl 2βpyroneβ3β, 4β, 5β and 6βcarboxylates were studied and the substituent effects on the 2βpyrone ring were compared with those of some model compounds. ^1^H NMR spectra were also recorded and discussed. The long range ^13^C, ^1^H coupling constants were ob