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13C NMR spectra and enol—enol tautomerism in crystalline keto—enols

✍ Scribed by A.I. Kol'tsov; A.A. Elkin; Donka Kh. Zheglova

Book ID
107803282
Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
319 KB
Volume
221
Category
Article
ISSN
0022-2860

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✍ N. N. Shapet'ko; I. L. Radushnova; Yu. S. Bogachev; S. S. Berestova; V. M. Potap 📂 Article 📅 1975 🏛 John Wiley and Sons 🌐 English ⚖ 268 KB

## Abstract Aldehyde (δCH) and enolic (δOH) proton chemical shifts, the corresponding spin–spin coupling constants (__J__CH,OH) and the ^13^C chemical shifts (δC) have been measured for three cyclic β‐ketoaldehydes as a function of temperature. A tautomeric equilibrium has been shown to exist betwe