The 13C NMR signals for some 4-substituted phenacyl chlorides and iodides were assigned. The carbonyl carbons exhibit upfield shifts compared with those of the corresponding Csubstituted acetophenones; in the chlorinated derivatives a downfield shift is observed for the cu-methylene carbons, while a
Carbon-13 NMR spectra of some 4-substituted phenacyl bromides
✍ Scribed by Fred Yukio Fujiwara; Roberto Rittner; Haydeé R. Freire
- Publisher
- John Wiley and Sons
- Year
- 1984
- Tongue
- English
- Weight
- 115 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0749-1581
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✦ Synopsis
The 13C NMR signals for some 4substituted phenacyl bromides were assigned. The experimental chemical shifts of the aromatic ring carbons are in close agreement with those calculated using substituent chemical shifts. Both the car-bony1 and the a-methylene carbons exhibit upfield shifts compared with those of the corresponding 4-substituted acetophenones.
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