N′-[4-(2-Furyl)but-3-en-2-ylidene]isonicotinohydrazide
نویسندگان
چکیده
The mol-ecule of the title Schiff base compound, C(14)H(13)N(3)O(2), is not perfectly planar; the furyl and pyridine rings are twisted with respect to each other along the C(4)N(2)C(2) organic chain, making a dihedral angle of 13.3 (1)°. The occurence of N-H⋯O hydrogen bonds builds up a chain developing parallel to the c axis.
منابع مشابه
1-[4-(2-Furyl)but-3-en-2-ylidene]-2-(2-nitrophenyl)hydrazine
In the title Schiff base compound, C(14)H(13)N(3)O(3), the furan and benzene rings are oriented at a dihedral angle of 10.24 (13)°. Intra-molecular N-H⋯O hydrogen bonding is observed between the imino and nitro groups.
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In the title compound, C(18)H(17)N(3)O(4), the amino group of the glycine methyl ester fragment is involved in an intra-molecular N-H⋯O hydrogen bond. The phenyl and furyl rings form dihedral angles of 10.20 (4) and 54.56°, respectively, with the pyrazole ring. In the crystal, mol-ecules related by translation along the b axis are linked into chains via weak inter-molecular C-H⋯O hydrogen bonds.
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The title compound, C(14)H(11)ClO(2), was prepared from 4-chloro-hypnone and 5-methyl-furfural by an aldol condensation reaction. The dihedral angle formed between the two benzene rings is 7.71 (2)°. The crystal structure is stabilized by C-H⋯O inter-actions.
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The title compound, C(10)H(6)ClF(3)N(2)O(2), was synthesized by coupling 4-dimethyl-amino-1,1,1-trifluoro-but-3-en-2-one with 4-chloro-benzene-diazo-nium chloride. It crystallizes with two mol-ecules in the asymmetric unit, which form two similar centrosymmetric dimers via hydrogen bonds. Extensive electron delocalization and intra-molecular N-H⋯O hydrogen bonds are responsible for a planar con...
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