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N'-[(5-Methyl-furan-2-yl)methyl-ene]isonicotinohydrazide.

ABSTRACT: The title compound, C(12)H(11)N(3)O(2), was prepared by the reaction of isonicotinohydrazide and 5-methyl-furan-2-carbalde-hyde. The pyridine ring makes a dihedral angle of 46.90 (9)° with the mean plane of the furan ring. The crystal packing is stabilized by a bifurcated inter-molecular N-H⋯(N,O) inter-action.

SUBMITTER: Liu L

PROVIDER: S-EPMC2959938 | biostudies-literature |

REPOSITORIES: biostudies-literature

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3-[(5-Methyl-furan-2-yl)methyl-ene]-1,5-dioxaspiro-[5.5]undecane-2,4-dione.

Project description:There are two crystallographically independent mol-ecules in the asymmetric unit of the title compound, C(15)H(16)O(5). In each, the 1,3-dioxane ring is in an envelope conformation with the C atom common to the cyclo-hexane ring forming the flap. The dihedral angles between the five essentially planar [maximum deviations from the least-squares planes of 0.049?(3) and 0.042?(3)?Å] atoms of the 1,3-dioxane ring and the furan ring in the two mol-ecules are 7.15?(1) and 6.80?(1)°. The crystal structure is stabilized by weak inter-molecular C-H?O hydrogen bonds.

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N'-[(3-Methyl-2-thien-yl)carbon-yl]isonicotinohydrazide.

Project description:In the title compound, C(12)H(11)N(3)O(2)S, the pyridine ring is inclined to the thio-phene ring, forming a dihedral angle of 34.96 (7)°. The mean plane through the hydrazide unit forms dihedral angles of 21.57 (8) and 53.08 (8)°, respectively, with the pyridine and thio-phene rings. The two O atoms are twisted away from each other, as indicated by the C-N-N-C torsion angle of -81.27 (15)°. In the crystal structure, mol-ecules are linked into an extended three-dimensional network by inter-molecular N-H⋯N, N-H⋯O and C-H⋯O hydrogen bonds. The crystal structure also features a short S⋯O [3.2686 (10) Å] inter-action and a weak inter-molecular C-H⋯π inter-action.

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Project description:The title compound, C(25)H(19)NO was synthesized by a Pd-catalysed intra-molecular Diels-Alders reaction. The dihedral angle between the two benzene rings is 82.33?(5)° and the dihedral angles between the hydro-naphtho[2,3-c]furan plane and the two benzene rings are 89.50?(3) and 77.64?(2)°. The O atom is displaced by 0.5929?(3)?Å from the hydro-naphtho[2,3-c]furan plane.

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Project description:In title compound, C(11)H(8)BrN(3)OS, the dihedral angle between the two aromatic rings is 27.61?(14)° and the Br atom is disordered over two sites with an occupancy ratio of 0.804?(2):0.196?(2). In the crystal, the mol-ecules are linked by N-H?O, C-H?O and C-H?N inter-actions, resulting in chains.

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1,2-Bis[bis-(methyl-sulfan-yl)methyl-ene]hydrazine.

Project description:The title compound, C(6)H(12)N(2)S(4), was obtained as a by-product (8%) during the reaction of the electrogenerated cyano-methyl anion with phenyl-amine, carbon disulfide and methyl iodide. The mol-ecule, with the exception of 8 H atoms, lies on a crystallographic mirror plane and is arranged around an inversion centre located at the mid-point of the N-N bond.

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Project description:The title compound, C(7)H(8)N(2)O(2), is almost planar (r.m.s. deviation for non-H atoms = 0.029?Å). In the crystal, inversion dimers linked by pairs of N-H?O hydrogen bonds generate an R(2) (2)(8) ring motif.

| S-EPMC2970214 | biostudies-literature

(4-Cyano-phen-yl)methyl-ene diacetate.

Project description:In the title mol-ecule, C(12)H(11)NO(4), the two acetyl groups are inclined by 71.3?(1) and 46.2?(1)° to the benzene ring. In the crystal structure, mol-ecules are linked into a chain along the c axis by C-H?O hydrogen bonds.

| S-EPMC2961459 | biostudies-literature

Bis[N,N'-bis-[(1H-pyrrol-2-yl)methyl-ene]cyclo-hexane-1,2-diamine]titanium(IV) tetra-hydro-furan solvate.

Project description:In the title compound, [Ti(C(16)H(18)N(4))(2)]·C(4)H(8)O, the Ti(IV) ion is chelated by two Schiff base dianions with a TiN(8) distorted square-anti-prismatic coordination geometry. The two cyclo-hexane rings assume the typical chair conformation. No hydrogen bonding is observed in the crystal structure.

| S-EPMC2960382 | biostudies-literature

4-{[(5-Methyl-2-fur-yl)methyl-ene]hydrazinocarbon-yl}pyridinium chloride monohydrate.

Project description:The title compound, C(12)H(12)N(3)O(2) (+)·Cl(-)·H(2)O, was prepared by the reaction of N'-[(5-methyl-2-fur-yl)methyl-ene]isonicotino-hydrazide and hydro-chloric acid at room temperature. The entire molecule is approximately planar with a maximum deviation of 0.047?(2)?Å. An intramolecular C-H?O interaction is observed. O-H?Cl, N-H?Cl, N-H?O, N-H?N, C-H?Cl and C-H?O hydrogen-bonds stabilize the crystal structure.

| S-EPMC2977373 | biostudies-literature

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