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N-[4-(Dimethyl-amino)-benzyl-idene]-3,4-dimethyl-isoxazol-5-amine.

ABSTRACT: The aromatic rings attached to the azomethine double bond in the title compound, C(14)H(17)N(3)O, are trans to each other [C-C=N-C torsion angle = 179.5 (1)°], and they are approximately coplanar [dihedral angle between the five- and six-membered rings = 13.7 (1)°].

SUBMITTER: Asiri AM

PROVIDER: S-EPMC3006978 | biostudies-literature |

REPOSITORIES: biostudies-literature

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N-(4-Chloro-benzyl-idene)-3,4-dimethyl-isoxazol-5-amine.

Project description:The mol-ecule of the title compound, C(12)H(11)ClN(2)O, has E configuration at the azomethine double bond and is virtually planar with a dihedral angle of 1.25?(13)° between the benzene and isoxazole rings. C-H?? inter-actions stabilize the crystal structure.

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N-(4-Bromo-benzyl-idene)-3,4-dimethyl-isoxazol-5-amine.

Project description:In the title compound, C(12)H(11)BrN(2)O, the 4-bromo-benzaldehyde and 5-amino-3,4-dimethyl-isoxazole units are oriented at a dihedral angle of 4.89?(8)°. In the crystal, weak ?-? inter-actions are present between the benzene rings at a centroid-centroid distance of 3.7862?(14)?Å.

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3,4-Dimethyl-N-(2,4,5-trimeth-oxy-benzyl-idene)-1,2-isoxazol-5-amine.

Project description:In the title compound, C(15)H(18)N(2)O(4), the aromatic rings on the azomethine double bond are trans to each other [C-C=N-C torsion angle = -178.29?(12)°] and they are approximately coplanar, the dihedral angle between them being 5.0?(1)°.

| S-EPMC3007490 | biostudies-literature

N-[(9-Ethyl-9H-carbazol-3-yl)methyl-idene]-3,4-dimethyl-isoxazol-5-amine.

Project description:The azomethine double bond in the title Schiff base, C(20)H(19)N(3)O, has an E configuration. The 13-membered carbazolyl fused ring system [r.m.s. deviation = 0.023?(9)?Å] is nearly coplanar with the five-membered pyrazole ring [r.m.s. deviation = 0.003?(4)?Å]; the dihedral angle between the two systems is 10.8?(2)°. The crystal studied was a non-merohedral twin having a 35% minor component.

| S-EPMC3007468 | biostudies-literature

3,4-Dimethyl-N-[(E)-3-nitro-benzyl-idene]-1,2-oxazol-5-amine.

Project description:In the title compound, C(12)H(11)N(3)O(3), the dihedral angle between the 3-nitro-benzaldehyde and 5-amino-3,4-dimethyl-1,2-oxazole moieties is 2.46?(12)°. The mol-ecule is close to planar, the r.m.s. deviation for the non-H atoms being 0.028?Å. The packing only features van der Waals inter-actions between the mol-ecules.

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N-[4-(Dimethyl-amino)-benzyl-idene]-4H-1,2,4-triazol-4-amine.

Project description:The title compound, C(11)H(13)N(5), is a Schiff base synthesized by the reaction of 4-amino-4H-1,2,4-triazole and 4-(dimethyl-amino)-benzaldehyde. The dihedral angle between the benzene and triazole rings is 43.09 (11)°. The crystal structure displays weak C-H⋯N inter-actions.

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N'-(3,4-Dimethyl-benzyl-idene)furan-2-carbohydrazide.

Project description:The title compound, C(14)H(14)N(2)O(2), was prepared by the reaction of 3,4-dimethyl-benzaldehyde and furan-2-carbohydrazide. The dihedral angle between the aromatic rings is 35.48 (14)°. In the crystal, mol-ecules are linked by N-H⋯O hydrogen bonds, generating C(4) chains propagating in [010].

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5-(3,4-Dimethyl-benzyl-idene)-2,2-dimethyl-1,3-dioxane-4,6-dione.

Project description:The title compound, C(15)H(16)O(4), was prepared by the reaction of 2,2-dimethyl-1,3-dioxane-4,6-dione and 3,4-dimethyl-benzaldehyde in ethanol. The 1,3-dioxane ring exhibits an envelope conformation. In the crystal, mol-ecules are linked by weak inter-molecular C-H?O hydrogen bonds, forming chains parallel to the b axis.

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(Z)-4-[4-(Dimethyl-amino)benzyl-idene]-3-methyl-isoxazol-5(4H)-one.

Project description:The title compound, C(13)H(14)N(2)O(2), an isoxazol-5-one derivative, was synthesized by a one-pot, three-component condensation reaction of methyl acetoacetate, hydroxy-lamine hydro-chloride and 4-(dimethyl-amino)benzaldehyde. All the non-H atoms are co-planar [r.m.s deviation = 0.0039?Å], with a Z configuration about the C=C bond. The dihedral angle between the phenyl ring and the isoxazole ring is 2.58?(19)°.

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(E)-1-(3,4-Dimethyl-benzyl-idene)-2,2-diphenyl-hydrazine.

Project description:The asymmetric unit of the title compound, C(21)H(20)N(2), contain two mol-ecules, both of them showing an E configuration of the C=N bond. The dihedral angles between the phenyl rings in the phenyl-hydrazone groups are 86.84?(10) and 84.85?(8)° for the two mol-ecules. Inter-molecular C-H?? inter-actions are observed in the crystal structure.

| S-EPMC3120608 | biostudies-literature

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