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

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.

SUBMITTER: Ukwueze NN

PROVIDER: S-EPMC4051048 | biostudies-literature | 2014 Jun

REPOSITORIES: biostudies-literature

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

Ukwueze Nkechinyere N NN Ukoha Pius O PO Ujam Oguejiofo T OT Asegbeloyin Jonnie N JN Groutso Tania T

Acta crystallographica. Section E, Structure reports online 20140531 Pt 6

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. ...[more]

PMID: 24940297

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Crystal structure of (Z)-N'-[1-(3-methyl-5-oxo-1-phenyl-1,5-di-hydro-4H-pyrazol-4-yl-idene)prop-yl]benzene-sulfono-hydrazide.

Project description:The title compound, C19H20N4O3S, was synthesized by refluxing equimolar amounts of 1-phenyl-3-methyl-4-propionylpyrazol-5-one and benzene-sulfonyl hydrazide in ethanol. The compound crystallizes in the keto form and the carbonyl O atom forms an intra-molecular N-H?O hydrogen bond with the neighbouring NH group. There is also C-H?O short contact involving the neighbouring phenyl ring. Probably as a result of this, the phenyl ring is inclined to the pyrazolone ring by only 7.58?(12)°. The dihedral angle between the phenyl ring and the benzene-sulfonyl ring is 22.78?(11)°. In the crystal, mol-ecules are linked by pairs of N-H?O hydrogen bonds, forming inversion dimers with an R (2) 2(14) ring motif. The dimers are linked via pairs of C-H?O hydrogen bonds, forming chains propagating along [100].

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4-Methyl-N'-(2-oxoindolin-3-yl-idene)benzene-1-sulfono-hydrazide.

Project description:In the title compound, C(15)H(13)N(3)O(3)S, the C-S-N(H)-N linkage is non-planar, the torsion angle being -65.12 (13)° and the S atom showing a tetra-hedral environment. The compound has two almost planar fragments linked to the S atom: the isatin-derivative fragment [(C(8)H(5)NO)N-N(H)-] and the tolyl fragment [C(7)H(7)-] have maximum deviations from the mean plane through the non-H atoms of 0.0813 (13) and 0.0094 (16) Å, respectively, and make an inter-planar angle of 80.48 (3)°. In the crystal, mol-ecules are connected into inversion dimers via pairs of N-H⋯O hydrogen bonds. Additionally, the mol-ecular structure is stabilized by an intra-molecular N-H⋯O hydrogen bond.

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Project description:The title compound, C17H24N2O3S, was synthesized in order to determine the relative configuration of the corresponding ?-keto aldehyde. In the U-shaped mol-ecule, the five-membered ring approximates an envelope with the methyl-ene atom adjacent to the quaternary C atom being the flap. The dihedral angles between the four nearly coplanar atoms of the five-membered ring and the flap and the aromatic ring are 38.8?(4) and 22.9?(2)°, respectively. The bond angles around the S atom are in the range 104.11?(16)-119.95?(16)°. In the crystal, mol-ecules are linked via N-H?O by hydrogen bonds, forming a chain along the a-axis direction.

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Project description:In the title compound, C(11)H(15)N(3)O(3)S, the C-S-N(H)-N linkage is nonplanar, the torsion angle being 75.70?(12)°. The compound has two almost planar fragments linked to the S atom: the hydrazone-derivative fragment [(HONC(4)H(6))N-N(H)-] and the tolyl fragment (C(7)H(7)-) have maximum deviations from the mean plane through the non-H atoms of 0.0260?(10) and 0.0148?(14)?Å, respectively. The two planar fragments make an inter-planar angle of 79.47?(5)°. In the crystal, mol-ecules are connected through inversion centers via pairs of N-H?O and O-H?N hydrogen bonds.

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Project description:In the title compound, C(18)H(16)N(2)O(3)S, the dihedral angle between the planes of the benzene ring and the naphthyl ring system is 83.37 (10)°. An intra-molecular O-H⋯N hydrogen bond occurs. Inter-molecular N-H⋯O hydrogen bonds stabilize the crystal structure. There is a π-π inter-action between the naphthyl ring systems [centroid-centroid distance = 3.7556 (15) Å]. In addition, naphth-yl-tolyl and naphth-yl-naphthyl C-H⋯π inter-actions are observed.

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Crystal structure of (4Z)-4-{[(2-chloro-phen-yl)amino](furan-2-yl)methyl-idene}-3-methyl-1-phenyl-4,5-di-hydro-1H-pyrazol-5-one.

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Crystal structure of N'-[(E)-(4-chloro-phen-yl)(phen-yl)methyl-idene]-4-methyl-benzene-sulfono-hydrazide.

Project description:The title compound, C20H17ClN2O2S, was obtained by a condensation reaction between 4-chloro-benzo-phenone and tosyl hydrazide. The plane of the methyl-substituted benzene ring forms dihedral angles of 20.12 (12) and 78.43 (13)° with those of the chlorine-substituted benzene ring and the benzene ring, respectively, with the last two rings forming a dihedral angle of 67.81 (13)°. The chlorine substituent was also found to be 0.868 (2):0.132 (2) disordered over these two rings. In the crystal, mol-ecules are linked through pairs of N-H⋯O hydrogen bonds, giving centrosymmetric cyclic dimers [graph set R 2 (2)(8)], which are linked by weak C-H⋯O and C-H⋯Cl inter-actions into a chain structure which extends along the a-axis direction.

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