## Abstract The carbon‐13 spectra of some __para__ and __meta__ substituted phenylferrocenes have been analysed. The substituent‐caused shifts are discussed and compared with similarly substituted biphenyls. Correlations with Hammett parameters and with the reactivity parameters of Swain and Lupton
Carbon-13 NMR spectra of substituted 2-thiophenecarboxanilides
✍ Scribed by Maria E. Amato; Salvatore Fisichella; Giuseppe Musumarra; Francesco A. Bottino
- Publisher
- John Wiley and Sons
- Year
- 1987
- Tongue
- English
- Weight
- 227 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0749-1581
No coin nor oath required. For personal study only.
✦ Synopsis
The effects of the X and Y substituents on these shifts are discussed, and correlated with substituent constants and with carbon shifts of analogous series of compounds.
📜 SIMILAR VOLUMES
The 13C NMR signals for some 4substituted phenacyl bromides were assigned. The experimental chemical shifts of the aromatic ring carbons are in close agreement with those calculated using substituent chemical shifts. Both the car-bony1 and the a-methylene carbons exhibit upfield shifts compared with
## Abstract The ^13^C NMR spectra of two __N__‐methylimidazole‐substituted sterol esters are discussed. The calculated shifts are compared to those obtained experimentally. For one of the sterol esters the experimental and calculated data show good agreement, and the substituent increments can be e
## Abstract Carbon‐13 NMR chemical shifts and carbon‐proton coupling constants for nine 4‐substituted and six 5‐substituted pyrimidines are reported. The carbon chemical shifts are correlated with π‐electron densities. Carbon‐proton coupling constants fail to correlate with substituent electronegat