Keywords : Schiff bases


Synthesis, Characterization and Evaluation Antibacterial Activity of Some (1,3-Oxazepine-4,7-dione and 1,3-Benzooxazepine-4,7-dione) Derived from Sulphamethoxazole using Irradiation Method.

Fouad Ahmed Omar; Ayad Sulaiman Hamad; Nihad Ismael Taha

Kirkuk University Journal-Scientific Studies, 2022, Volume 17, Issue 2, Pages 27-35
DOI: 10.32894/kujss.2022.131552.1048

In this study, new compounds of Schiff bases were prepared (1-6), from the reaction of sulfamethoxazole with benzaldehyde derivatives. Schiff bases (1-6) converted to 1,3-Oxazepine-4,7-dione and 1,3-Benzooxazepine-4,7-dione derivatives (7-18) through the reaction of Schiff bases with maleic anhydride as well as phthalic anhydride using crushing, grinding and microwave irradiation method. The structures of all prepared compounds have been identified by (I.R) technique, also some of the prepared compounds have been identified by (1H-NMR,13C-NMR) techniques. The biological activities have been carried out for some compounds such as (9,10,11,12,13,14,15,16,17) against two types of bacteria such as Staphylococcus aureus and Esherichia coil.

Synthesis, Characterization and Evaluation Antibacterial Activity of Some Schiff Bases and (1,3-Oxazepine or Diazepine-4,7-Dione)

Saad Salim Jasim

Kirkuk University Journal-Scientific Studies, 2019, Volume 14, Issue 2, Pages 249-272
DOI: 10.32894/kujss.2019.14.2.15

In this study, some of Schiff bases, 1,3-oxazepine-4,7-dione and 1,3-diazepine-4,7-dione compounds derived from terephthalaldehyde and substituted aniline have been prepared, Schiff bases (a1-5) which derived from terephthalaldehyde and substituted aniline have been reacted with maleic anhydride and phthalic anhydride to produce 1,3-oxazepine-4,7-dione compounds (b1-10). 1,3-oxazepine-4,7-dione compounds (b1-10) have been reacted with phenyl hydrazine to produce 1,3-diazepine-4,7-dione compounds (c1-10). The prepared compounds were characterized using physical methods, the precise analysis of elements (C.H.N), infrared (IR) and (1H NMR) spectroscopy. The reactions were monitored by. Thin Layer Chromatography (TLC). The antibacterial activity was evaluated for some of the synthesis compounds.ً.