Keywords

Schiff bases, sulfonamide derivatives, salicylaldehyde

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Carbamazepine, Spectrophotpmetric, Antiepileptical, Salicylaldehyde, Ferric ion

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5-nitroso 8- hydroxyquinoline, salicylaldehyde, P-amino acetophenone, salicylaldehyde mixed ligand complexes, Schiff base

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Schiff base, benzyliden, salicylaldehyde, Benzoate

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Salicylaldehyde, Infrared spectrum, IT Flame atomic absorption

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Open Schiff base, Macrocyclic, Salicylaldehyde, Spectral Technique, Antimicrobial Activity.

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Williamson etherification, tetradentate Schiff base ligand, salicylaldehyde, metal complexes.

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Fe2O3, Nano powder, Salicylaldehyde, C7H6O2amino phenol, C6H7NO, 125W lamp, Uv-irradiation.

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This study includes synthesis and characterization of new derivatives of 3-, 2-, 6-oxo-1, 3-thiazinan-3-yl-R-1, 3-oxazepane-4, 7-dione and N-Bromo amines 1, 3-oxazepane-4, 7-dione derivatives. Schiff's bases reactions through one step process in inert solvents. Some employing Schiff's bases [1- 4], in addition, synthesized by the reaction of different amines with, Salicylaldehyde in absolute ethanol under reflux. Heterocyclic rings of 1, 3-oxazepane-4, 7-dione prepared by the reaction of succinic anhydride with Schiff's bases [1-4] and 3-, 2-, 6-oxo-1, 3-thiazinan-3-yl-R-1, 3-oxazepane-4, 7-dione derivatives were prepared by the reaction of 3-mercaptopropanoic acid with 1, 3-oxazepane-4, 7-dione[A1-A4] in 1, 4-dioxan. Synthesis of some N-bromo amine derivatives by the reaction of 1, 3-oxazepane-4, 7-dione[A1-A4] with 2, 4, 4, 6-TBCD, 2, 4, 4, 6-tetrabromocyclohexa-2, 5-dienone in dry benzene, The prepared compounds were identified by melting point, FT-IR, UV-Vis and 1H- NMR spectroscopy.

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