نتایج جستجو برای: 4 dihydroquinoline 3 carbohydrazide
تعداد نتایج: 2481523 فیلتر نتایج به سال:
The asymmetric unit of the title compound, C(13)H(10)ClN(3)O·H(2)O, consists of two crystallographically independent Schiff base mol-ecules which exist in an E conformation with respect to the C=N double bond, and two independent water mol-ecules. In the crystal, the Schiff base and water mol-ecules are linked into a three-dimensional network via N-H⋯O, O-H⋯N, O-H⋯O and C-H⋯O hydrogen bonds. Th...
The title compound, C21H26N4S, was synthesized by the condensation reaction of 4-iso-propyl-benzaldehyde with thio-carbohydrazide in ethanol. The planes of the two benzene rings in the mol-ecule are inclined at 22.6 (1)°. In the crystal, pairs of inter-molecular N-H⋯S hydrogen bonds link the mol-ecules into inversion dimers.
Large Stokes-shift coumarin dyes with an O-phosphorylated 4-(hydroxymethyl)-2,2-dimethyl-1,2,3,4-tetrahydroquinoline fragment emitting in the blue, green, and red regions of the visible spectrum were synthesized. For this purpose, N-substituted and O-protected 1,2-dihydro-7-hydroxy-2,2,4-trimethylquinoline was oxidized with SeO2 to the corresponding α,β-unsaturated aldehyde and then reduced wit...
The title compound, C(11)H(9)N(3)OS, was prepared to investigate the coordination chemistry of thio-phene-containing ligands as precursors to inter-esting metallopolymers. The mol-ecule is nearly planar. The angle between the thio-phene and pyridine rings is 8.63 (4)° and features the expected trans configuration about the imine bond. The structure is stabilized by a weak inter-molecular N-H⋯O ...
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