N′-[(4Z)-1-(3-Methyl-5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-4-ylidene)hexyl]benzenesulfonohydrazide

Abstract

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

Crystal structure ofN′-[(1E)-1-(6-methyl-2,4-dioxo-3,4-dihydro-2H-pyran-3-ylidene)ethyl]benzenesulfonohydrazide

“…For the crystal structure of a related thiosemicarbazone, see: Vrdoljak et al (2008). For a benzenesulfonohydrazide derivative of a similar tautomeric enamine form, see: Ukwueze et al (2014). Data collection: APEX2 (Bruker, 2004); cell refinement: SAINT (Bruker, 2004); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL2013 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012) and Mercury (Macrae et al, 2006); software used to prepare material for publication:…”