Substituent shift constants for the aromatic protons of benzene derivatives in dimethyl sulfoxide solution
✍ Scribed by Gove, Jessie L.
- Book ID
- 126293785
- Publisher
- American Chemical Society
- Year
- 1973
- Tongue
- English
- Weight
- 417 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0022-3263
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
The lanthanide induced chemical shifts of the ester methyl group were studied in eighteen m-, and p-substituted aromatic methyl esters with varying amounts of added shift reagent, Eu(fodl 3. Each time the lanthanide induced shift (LIS) was plotted against the molar ratio of shift reagent (SR)/substr
## Abstract The aromatic ^1^H NMR shifts of __ortho__‐disubstituted benzenes were used to derive 285 pair‐induced chemical shifts (pairwise corrections) for vicinal pairs of the substituent set (F, Cl, Br, I, NH~2~, NHCOMe, NO~2~, OH, OMe, Me, CHO, COMe, CN, Ph). Using these parameters and a simple
Substituent constants for the thiocyanato group (q:: = 0.94, ZEN = 0.45 and c:zs = 0.41) have heen derived by an additivity procedure, and shown to reproduce the chemical shifts of vinyl protons in a wide variety of a,fL unsaturated thiocyanates with an accuracy of kO.30 ppm in 94% of the cases stud