Infrared spectra ofortho-substituted acetanilides: Vicinal effects and conformation
✍ Scribed by A. Perjéssy; D. Rasała; D. Loos; D. Piorun
- Publisher
- Springer Vienna
- Year
- 1997
- Tongue
- English
- Weight
- 555 KB
- Volume
- 128
- Category
- Article
- ISSN
- 0026-9247
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Infrared spectra of all isomers of polymethyl-substituted benzoic acids were recorded in the carbonyl and hydroxyl regions in tetrachloromethane at various concentrations and interpreted in terms of conformation. According to a plot of #(C=O) of the monomeric form vs Hammett substituent constants ',
## Abstract Carbon‐13 NMR spectra have been obtained for 27 aliphatic monosulphones and 13 aliphatic disulphones. Substitution rules have been formulated which allow the prediction of chemical shifts when a CH~2~ group in a hydrocarbon is replaced by an SO~2~ group, or when an H atom in a sulphone