13C NMR spectra of some sulphur dioxide—aromatic amine complexes
✍ Scribed by D. L. A. De Faria; P. S. Santos
- Publisher
- John Wiley and Sons
- Year
- 1987
- Tongue
- English
- Weight
- 175 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0749-1581
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## Abstract The ^13^C n.m.r. spectra of four classes of __N__‐aryl sulphur–nitrogen compounds are discussed. The __para__ carbon shieldings of the __N__‐phenyl derivatives reflect the substituents effects of the various nitrogen groups. These show large differences for the four classes of compounds
## Abstract ^13^C NMR spectra for a number of furanoflavones are presented and analysed. The effects of various substituents are discussed.
## Abstract A ^13^C NMR study of a series of novel 2,4‐thio‐substituted 5‐trifluoromethylpoly‐chloropyridines was carried out. The carbon chemical shifts and external long‐range ^13^C, ^19^F NMR coupling constants between the pyridine ring carbons and the trifluoromethyl group are reported.
## Abstract The ^13^C NMR spectra of some mono‐ and geminal disubstituted protoadamantanes have been assigned with the aid of shift reagents.