14N chemical shifts in the enamino ketone quaternary ammonium salts
✍ Scribed by Janusz Dąbrowski; Krystyna Kamieńska-trela; Andrzej J. Sadlej
- Publisher
- John Wiley and Sons
- Year
- 1971
- Tongue
- English
- Weight
- 415 KB
- Volume
- 3
- Category
- Article
- ISSN
- 0749-1581
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## Abstract The rotational barrier in the __N__,__N__‐dimethylamide group is studied by proton NMR for __N__,__N__‐dimethylnicotinamide and two quaternary salts in aqueous solution. The carbon‐13 NMR spectra of a number of aromatic __N__,__N__‐dimethylamides are discussed. A roughly linear correlat
## Abstract The ^15^N as well as ^13^C and ^1^H chemical shifts of eight __push–pull__ benzothiazolium iodides with various π‐conjugated chains between dimethylamino group and benzothiazolium moiety have been determined by NMR spectroscopy at the natural‐abundance level of all nuclei in DMSO‐__d__~