Crystal and molecular structure of diphenyl sulphone, 4,4′-difluorodiphenyl sulphone and 3,3′-dinitro-4,4′-difluorodiphenyl sulphone
✍ Scribed by J. G. Sime; D. I. Woodhouse
- Publisher
- Springer
- Year
- 1974
- Tongue
- English
- Weight
- 840 KB
- Volume
- 4
- Category
- Article
- ISSN
- 1572-8854
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The proton and carbon NMR spectra of nine 4-Xdiphenyl sulphoxides, seven 4-X-4'-N02diphenyl sulphoxides, eight 4,4'-X,diphenyl sulphoxides, eight 4X-diphenyl sulphones, seven 4-X4'-N02diphenyl sulphones and eight 4,4'-X,diphenyl sulphones have been obtained. Correlation of the ' ' C chemical shifts
## Abstract Syntheses of 2,6‐di‐__t__‐butylpyridine‐3‐ and −4‐sulphonic acids proving the structure of these compounds are described. They were carried out in order to confirm that during the sulphonation of 2,6‐di‐__t__‐butylpyridine at low temperature the sulphonic acid group enters the 3‐positio