Adcock and Khor have recently reported 19 F chemical shift data for l-substituted 4-pfluorophenylbicyclo[2.2.2loctanes, 2.
Concerning the transmission of substituent effects in unconjugated versus conjugated structures by19F NMR
β Scribed by W. Adcock; T.C. Khor
- Publisher
- Elsevier Science
- Year
- 1976
- Tongue
- French
- Weight
- 252 KB
- Volume
- 17
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
An extensive series of (E)/(Z)-5-substituted(X)adamant-2-yl Γuorides (2 and 3, respectively) and (E)/ (Z)-4-substituted(X)adamant-1-yl Γuorides (4 and 5, respectively) were synthesized and characterized and their 19F chemical shifts measured in several solvents. Correlation of the 19F substituent ch
A series of 3-substituted(X)bicyclo[1.1.1]pent-1-yl fluorides (1) together with a more limited series of 3-substituted(X)bicyclo[1.1.1]pent-1-yl trifluorides (4) were synthesized and their 19 F and 13 C NMR spectra were recorded. Correlation of the 19 F substituent chemical shifts (SCS) of 1 against
## Abstract Intermolecular effects are shown to induce a variation of about 5 ppm in the nitrogen NMR shieldings of aromatic nitro groups. The latter turn out to be comparable to those exerted by substituents in nitrobenzene derivatives in solutions in a given solvent. Substituent effects on the NO
The iniluence of substituents on the 'H, "C and 15N NMR chemical shifts of 2-substituted 5(6)nitrobenzimidazoles and their analogues labelled with 15N in the nitro group was investigated. It was found that the substituent effects are transmitted to the carbon and hydrogen nuclei in positions 4-7 mai