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Inicio » Actividades I+D > Publicaciones 2004 > Two enamines derived from 1-n-alkyl-3-me...
artículo con referato
"Two enamines derived from 1-n-alkyl-3-methylpyrazol-5-ones"
J. Belmar, F.R. Pérez, Y. Moreno and R. Baggio
Acta Cryst. C 60(9) (2004) o705-o708
The first two crystal structures of enamines derived from 1-n-alkyl-3-methyl-5-pyrazolones, namely 1-(n-hexyl)-3-methyl-4-[1-(phenylamino)propylidene]-2-pyrazolin-5-one, C19H27N3O, (I), and N,N′-bis{1-[1-(n-hexyl)-3-methyl-5-oxo-2-pyrazolin-4-ylidene]ethyl}hexane-1,6-diamine, C30H52N6O2, (II), are reported. The molecule of (II) lies about an inversion centre. Both (I) and (II) are stabilized by intramolecular N–HO hydrogen bonding. This confirms previous results based on spectroscopic evidence alone.
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