Acta Crystallographica Section C

Crystal Structure Communications

Volume 60, Part 9 (September 2004)

ob1196 scheme

Acta Cryst. (2004). C60, o705-o708 [doi:10.1107/S0108270104018736]

Two enamines derived from 1-n-alkyl-3-methylpyrazol-5-ones

J. Belmar, F. R. Pérez, Y. Moreno and R. Baggio

Abstract: 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.

Formula: C₁₉H₂₇N₃O and C₃₀H₅₂N₆O₂

Online 31 August 2004


	Structure factor file (CIF format) (153.6 kbytes) Contains datablock I

	Structure factor file (CIF format) (132.0 kbytes) Contains datablock II

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