ahmedabudief

Dr. Ahmed Mohamed Abu-Dief

Professor - Professor of Physical and Inorganic Chemistry

Faculty of science

Address: Behind hospital of Sohag University - Ali Ebn Abi Taleb Street

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Publications Which contain the keyword: H2O2

Azomethine metal chelates as an efficient catalyst for oxidation of organic compounds

2019-06-12 13:46:42 Keywords Catalyst, Oxidation, azomethine ligands, metal chelates, H2O2,
Azomethine metal chelates as an efficient catalyst for oxidation of organic compounds
Azomethine ligands and their metal chelates are flexible compounds synthesized from the condensation of an amino compound with carbonyl compounds and extensively used for industrial purposes and also show a broad range of biological efficiencies including antibacterial, antifungal, antiviral, antimalarial, antiproliferative, anti-inflammatory, anticancer, anti-HIV, anthelminthic and antipyretic properties. Azomethine metal chelates show excellent catalytic activity in diversity reactions. Over the ... Read more

Catalytic potential of new mononuclear Cr(III)-Schiff base complexes for selective oxidation of benzyl alcohol by H2O2

2019-08-17 21:50:53 Keywords Benzyl alcohol, H2O2, Schiff base complexes, catalytic oxidation,
Catalytic potential of new mononuclear Cr(III)-Schiff base complexes for selective oxidation of benzyl alcohol by H2O2
IN THE PRESENT CONTRIBUTION, SOME NOVEL CR(III) COMPLEXES WERE SYNTHESIZED FROM TRI- AND TETRA-DENTATE IMINE LIGANDS DERIVED FROM 3-ETHOXYSALICYLALDEHYDE OR 2-HYDROXYNAPHTHALDEHYDE WITH 2-AMINOPHENOL OR _O_-PHENYLENEDIAMINE. ALL THE PREPARED LIGANDS WERE AUTHENTICATED BY IR, 1H, 13C NMR SPECTRA AND CHN ANALYSIS. INTERACTION OF THE SYNTHESIZED LIGANDS WITH CHROMIUM NITRATE PRODUCED THREE NOVEL CR(III) COMPLEXES. THE STRUCTURE OF THE PREPARED CR(III) COMPLEXES ... Read more

High Selectivity on The epoxidation of Cyclooctene Catalyzed by Tri-and Tetra-Dentate Imine Vanadyl Chelates Using H2O2

2018-11-21 12:16:31 Keywords Catalyzed, H2O2, Selectivity, tetra-dentate, epoxidation, Cyclooctene, solvent effect, Temperature, TON, TOF,
High Selectivity on The epoxidation of Cyclooctene Catalyzed by Tri-and Tetra-Dentate Imine Vanadyl Chelates Using H2O2
High yield of VO(II) chelates incorporating new imine ligands were obtained by the condensation reaction between 2-hydroxynaphthaldehyde or 3-ethoxysalicylaldehyde and o-phenylenediamine s in 1:1 molar ratio. All the complexes are non– hygroscopic in nature and stable to the atmosphere. The synthesized ligands and the isolated imine chelates have been characterized various physico-chemical techniques. The results obtained from these studies and ... Read more

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