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All Journal Journal of Multidisciplinary Applied Natural Science Journal for Technology and Science
Abdul-Bary, Mariam
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Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Energy Environmental Science Immunology & microbiology Materials Science & Nanotechnology Mathematics Physics

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Synthesis, Characterization and Biological Activity of Some New Pyrimidine Derivatives Abdul-Bary, Mariam; Haddad, Batool; Al Ameri, Jenan
Journal of Multidisciplinary Applied Natural Science Vol. 5 No. 3 (2025): Journal of Multidisciplinary Applied Natural Science
Publisher : Pandawa Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47352/jmans.2774-3047.277

Abstract

In this study, four derivatives of pyrimidine-2(1H)-thione were synthesized via the reaction between the compounds of α,β-unsaturated ketone and thiourea. The first step included a reaction between 1 mol of four different derivatives of primary amines and 1 mol of benzil. In the second step, the resulting compound was interacted with acetone to prepare α,β-unsaturated ketone. In the third step, the resulting compound was then interacted with thiourea to form the following compounds: 5,6-dihydropyrimidin-2(1H)-thione. The IR, (1H and 13C) NMR and MS spectroscopies were used to confirm the structures of the prepared compounds and examine their antibacterial activities against (Staphylococcus aureus and Escherichia coli) by well diffusion method. It was found that the synthesized compounds have high activity against these two types of bacteria, especially compound P2 had the most inhibitory activity.
SCHIFF BASES AND THEIR COMPLEXITIES: A REVIEW Abdul-Bary, Mariam; Sweah, Zainab J.
Journal for Technology and Science Vol. 3 No. 1 (2026): Journal of Social Science
Publisher : PT ANTIS INTERNATIONAL PUBLISHER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61796/ipteks.v3i1.443

Abstract

Objective: H. Schiff of Germany made the first attempts at preparing the Schiff bases in 1864, first showing that primary aliphatic or aromatic amines could react with ketones or aldehydes to form condensed monoalkyl or monoaryl imines with little change in the stereochemistry of the carbonyl carbon. The identification of this led to a long history of development of Schiff base research, which prompted chemists to find novel analogues that have better biological and therapeutic properties. Method: When Schiff bases are complexed with metallic ions, they often form very stable complexes that have shown promising antibacterial, antifungal, and anticancer effects. They can play an important role in coordination chemistry, largely because the azomethine (C=N) functional group has a strong binding capacity and is able to interact with a large range of metal ions, especially transition metal ions. Results: Schiff bases have the azomethine motif (C=N-R2) structurally and can be made highly reactive with the inclusion of heterocyclic compounds like pyrazole or imidazole. Novelty: A combination of these rings with the Schiff base skeleton frequently leads to the production of compounds which exhibit significant antifungal properties.
Co-Authors Al Ameri, Jenan Haddad, Batool Sweah, Zainab J.