Structure de Bases de Schiff Derivees de 4‐Acylpyrazoline‐5‐Ones et 5‐Thiones
- 1 January 1975
- journal article
- research article
- Published by Wiley in Bulletin des Sociétés Chimiques Belges
- Vol. 84 (7) , 741-746
- https://doi.org/10.1002/bscb.19750840708
Abstract
The structure of 21 1‐phenyl‐3‐R‐4,1′‐alkyl (aryl)aminoalkyl(aryl)idenepyrazolin‐5‐ones or 5‐thiones is examined.Whereas the chelated NH exo Z form exists always in the pyrazolin‐5‐thiones compounds, this type of tautomer is only observed, for the pyrazolinones derivatives, when one or two steric interactions between substituents (R3‐R1′, and/or R1′‐R2′,) occur.Keywords
This publication has 4 references indexed in Scilit:
- Structure des bases de schiff dérivées de 4‐acylisoxazolin‐5‐onesJournal of Heterocyclic Chemistry, 1975
- Electronic effects of the substituents containing the thiocarbonyl groupThe Journal of Organic Chemistry, 1970
- The Synthesis of 1-Phenyl-3-methyl-4-acyl-pyrazolones-5.Acta Chemica Scandinavica, 1959
- Über indigoide FarbstoffeMonatshefte für Chemie / Chemical Monthly, 1910