High-resolution proton nuclear magnetic resonance spectra of the tetrachlorinated through beptachlorinated dibenzo-p-dioxins are presented. Chemical shifts from dioxins that were synthesized separately are used to assign congeners formed in mixtures. Linear multiple regression analysis was applied t
A proton magnetic resonance study of N1-substituent effects on sulfanilamides
β Scribed by Cammarata, Arthur; Allen, Richard C.
- Book ID
- 126129839
- Publisher
- American Chemical Society
- Year
- 1968
- Tongue
- English
- Weight
- 474 KB
- Volume
- 11
- Category
- Article
- ISSN
- 0022-2623
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
Proton NMR data for a number of l-.IZ-4-Y-3,5-dimethylbenzenc?s and l-X-2-Y-4-Z-3,5-dimethylbenzenc?s are presented. The proton chemical shifts of the methyl groups at positions 3 and 5 are mainly affected by the ring current effect of the snbstituents. Thii conclusion was strongly supported by the
## Abstract Ethyl 2βcyanoβ3βmethylβ4βphenylβ2βpentenoate was obtained as a mixture of two geometric isomers. An aromatic solvent induced shift experiment and calculations of the difference in the chemical shifts of methyl protons linked to the double bond lead to the assignation of the geometry of