N'-[(4Z)-1-(3-Methyl-5-oxo-1-phenyl-4,5-di-hydro-1H-pyrazol-4-yl-idene)hex-yl]benzene-sulfono-hydrazide

Nkechinyere N Ukwueze; Pius O Ukoha; Oguejiofo T Ujam; Jonnie N Asegbeloyin; Tania Groutso

doi:10.1107/S1600536814012045

N'-[(4Z)-1-(3-Methyl-5-oxo-1-phenyl-4,5-di-hydro-1H-pyrazol-4-yl-idene)hex-yl]benzene-sulfono-hydrazide

Acta Crystallogr Sect E Struct Rep Online. 2014 May 31;70(Pt 6):o730-1. doi: 10.1107/S1600536814012045. eCollection 2014 Jun 1.

Authors

Nkechinyere N Ukwueze¹, Pius O Ukoha¹, Oguejiofo T Ujam¹, Jonnie N Asegbeloyin¹, Tania Groutso²

Affiliations

¹ Department of Pure and Industrial Chemistry, University of Nigeria, Nsukka, Enugu State, Nigeria.
² School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.

Abstract

In the title compound, C22H26N4O3S, the dihedral angle between the pyrazoloneand phenyl rings is 21.73 (4)°. The benzensulfono-hydrazide group adopts a gauche conformation about the N-N vector. The C-N-N-S torsion angle is -109.88 (13)°. The mol-ecule exists as the enamine tautomeric form (C=C-NH). An intra-molecular N-H⋯O=C hydrogen bond occurs. In the crystal, mol-ecules are linked by pairs of N-H⋯O=C hydrogen bonds, forming centrosymmetric dimers.