On the Tautomerism of N-Substituted Pyrazolones: 1,2-Dihydro-3H-pyrazol-3-ones versus 1H-Pyrazol-3-ols

On the Tautomerism of N-Substituted Pyrazolones: 1,2-Dihydro-3H-pyrazol-3-ones versus 1H-Pyrazol-3-ols

The tautomerism of 1-phenyl-1,2-dihydro-3H-pyrazol-3-One was investigated. An X-ray crystal structure analysis exhibits dimers of 1-phenyl-1H-pyrazol-3-ol units. Comparison of NMR (nuclear magnetic resonance) spectra in liquid state (1H, 13C, 15N) with those of “fixed” derivatives, as well as with t...

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Main Authors:	Eglė Arbačiauskienė, Sonata Krikštolaitytė, Aiva Mitrulevičienė, Aurimas Bieliauskas, Vytas Martynaitis, Matthias Bechmann, Alexander Roller, Algirdas Šačkus, Wolfgang Holzer
Format:	Article
Language:	English
Published:	MDPI AG 2018-01-01
Series:	Molecules
Subjects:	prototropic tautomerism 1H-pyrazol-3-ol 1,2-dihydro-3H-pyrazol-3-ones NMR (1H 13C 15N) solid state NMR X-ray structure analysis
Online Access:	http://www.mdpi.com/1420-3049/23/1/129

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