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Structural studies by 1H and 13C DNMR—II°: Alternative protonation sites in carbonyl conjugated chain enamines of the type R1-C1O-C2HC3H-NR2R3. A method of synthesis of disubstituted pyridinium salts

✍ Scribed by Lech Kozerski; E. Czerwińska


Publisher
Elsevier Science
Year
1977
Tongue
French
Weight
255 KB
Volume
33
Category
Article
ISSN
0040-4020

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Structural studies by 1H and 13C dynamic
✍ Lech Kozerski 📂 Article 📅 1977 🏛 John Wiley and Sons 🌐 English ⚖ 510 KB

## Abstract ^13^C magnetic resonance spectra of several enamino ketones with secondary and tertiary amino groups were obtained for trifluoroacetic acid solutions. In both series __O__‐protonation is predominant and the chemical shifts are related to the electron density changes with respect to the