## REFERENCE DATA carbons, for various substituent groups and positions were carried out by gated decoupling with NOE. ## RESULTS AND DISCUSSION The I3C NMR chemical shifts of the compounds are shown in Tables 123; 'J(CH) and long-range coupling constants of 2, 9, 13 and 18, measured by gated d
13C and 15N NMR studies of 1,2-benzisoxazole 2-oxides, 1,2-benzisoxazoles and 2-hydroxyaryl ketoximes
✍ Scribed by Petros G. Tsoungas; Bruce F. De Costa
- Publisher
- John Wiley and Sons
- Year
- 1988
- Tongue
- English
- Weight
- 444 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0749-1581
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
## Abstract ^13^C and ^15^N NMR spectra of eight substituted 1,2,4‐triazines were measured and assigned. The assignments of the ^13^C NMR spectra were based on the substituent chemical shifts and ^__n__^__J__(C,H) coupling constants. ^15^N NMR chemical shifts generally showing well separated ranges
## Abstract ^13^C and ^15^N NMR chemical shifts were measured for __N__^1^‐alkyl‐__N__^2^‐arylthioureas. The absence of decoalescence of the __N__^1^‐alkyl group carbon signals down to 190 K, the europium‐induced chemical shifts and the molecular mechanics calculations indicate that the preferred c
## Abstract We report here the syntheses of tetrazole‐^13^C and 1,2,4‐triazole‐1,2‐^15^N~2~ by simple, one‐step procedures using common, commercially available, isotopically‐labeled starting materials. tetrazole‐ ^13^C is conveniently prepared from K^13^CN and NaN~3~ in 70% yield, almost twice the
## Abstract ^1^H, ^13^C and ^15^N NMR measurements (1D and 2D including ^1^H^15^N gs‐HMBC) have been carried out on 3‐amino‐1, 2,4‐benzotriazine and a series of __N__‐oxides and complete assignments established. __N__‐Oxidation at any position resulted in large upfield shifts of the corresponding