Güncel Gönderiler: FEF, Kimya Bölümü Koleksiyonu
Toplam kayıt 483, listelenen: 341-360
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Ferrocenyl-substituted dinuclear Cu(II) complex: Synthesis, spectroscopy, electrochemistry, DFT calculations and catecholase activity
(Elsevier Science Bv, 2016)A new ferrocenyl-substituted heterocyclic hydrazide ligand and its Cu(II) complex were prepared. the DFT calculations were performed to determine the electronic and molecular structures of the title compounds. the electronic ... -
Partial purification and characterization of lipase from Geobacillus stearothermophilus AH22
(Taylor & Francis Ltd, 2016)The lipase was partially purified by ion exchange chromatography and gel filtration column chromatography, and was characterized from Geobacillus stearothermophilus AH22 strain. the lipase was purified 18.3-folds with 19.7% ... -
Synthesis and study of antitumor activity of some new 2-(4-methoxybenzyl)-1h-benzimidazole derivatives bearing triazole, oxadiazole and ethanol moiety
(Editura Acad Romane, 2016)A series of novel 1,2-disubstituted benzimidazole derivatives containing hydrazinecarbothioamide (7a-c), 1,2,4-triazole (8a-c) and 1,3,4-oxadiazole (5) moiety were synthesized starting from 2-(4-methoxybenzyl)-1H-benzimidazole. ... -
A tetranuclear copper (II) complex with pyrazole-3,5-dicarboxylate ligands: synthesis, characterization and electrochemical properties
(Walter de Gruyter Gmbh, 2016)A tetranuclear copper (II) complex with pyrazole3,5-dicarboxylate ligands (pdc(3-)), [Me2NH2](4) [Cu-4(pdc)(4)], was synthesized using solvothermal and metal oxidation routes and characterized by elemental analysis, infrared, ... -
Purification and characterization of a polyphenol oxidase from cimin grape (Vitis vinifera spp., Cimin)
(Research Journal Biotechnology, 2016)A polyphenol oxidase (PPO) from Cimin grape was purified 11.2-fold by using a Sepharose 4B-L-tyrosine-p-aminobenzoic acid affinity column. the optimum pH and temperature of PPO purified from Cimin grape were 7.5 and 30 ... -
A aonvenient synthesis of Bisbenzimidazoles from iminoester hydrochlorides Via Microwave Technique
(Wiley-Blackwell, 2016)A simple and practical method has been developed for the synthesis of bisbenzimidazoles. Iminoester hydrochlorides of phenylacetic acids were used as intermediates in this reaction with 3,3'-diaminobenzidine under microwave ... -
Synthesis, characterization, electrochemical and spectroelectrochemical properties of novel peripherally tetra-1,2,4-triazole substituted phthalocyanines
(Elsevier Science Sa, 2016)The synthesis and characterization of novel 1,2,4-triazole derivative (3), nitrile compound (5) and peripherally tetra 1,2,4-triazole substituted metal-free (6), zinc(II) (7), nickel(II) (8), cobalt(II) (7), lead(II) (9) ... -
Synthesis of novel symmetrical 1,4-disubstituted 1,2,3-bistriazole derivatives via 'click chemistry' and their biological evaluation
(Mdpi, 2016)A series of symmetric bis-1,2,3-triazole compounds 2-5(a-f) were synthesized as potential antioxidant agents via click chemistry. Their structures were confirmed by H-1-NMR and C-13-NMR. All of the synthesized compounds ... -
Acetate bridged dinuclear Cu(II) complexes with ferrocene based benzimidazol ligands: Synthesis, spectroscopy, electrochemistry, DFT calculations and catecholase activity
(Pergamon-Elsevier Science Ltd, 2016)Two new benzimidazole ligands, 1-[(E)-ferrocenylmethylidenehydrazino]-2-{5,6-dichloro-2-[(o-chloro-phenyl)methyl]-1,3-diaza-1H-inden-1-yl}-1-ethanone (1) and 1-[(E)-ferrocenylmethylidenehydrazino]-2-{2-[p-(trifluoromethy ... -
Investigation of the behavior of hydrogen-bonded phenolic compounds and their determination by using poly(vinylferrocenium)-polyaniline composite film
(Wiley, 2016)The hydrogen bonding between phenolic compounds (phenol (Ph), catechol (Ct), resorcinol (Rs), and hydroquinone (Hq)) is investigated at pH 4. the oxidation behaviors of total phenolic compounds (TotPh) are different from ... -
High-throughput screening of inhibitory effect of medicinal plants on bacterial DNA polymerases
(Elsevier Science Bv, 2016)Antibiotic resistance is a serious and increasing problem in medicine. Particularly, pathogens are one of the most important public health issues at the 21st Century. -
Metal-organic frameworks based on copper(I) iodide and pyridine-3,5-dicarboxylic acid: Synthesis, crystal structures and luminescent properties
(Pergamon-Elsevier Science Ltd, 2016)Two metal -organic frameworks (MOFs) with pyridine-3,5-dicarboxylic acid (H(2)pdc), {[(CuI)-I-I][Cu-II(pdc) (H2O)]center dot 1.5MeCN center dot H2O} (1) and {[Cu(MeCN)(4)]center dot 2[(CuI)-I-I]center dot 2[Cu(2)(II)pdc) ... -
Substituted phthalocyanines and their electropolymerization properties
(Elsevier Science Sa, 2016)In this study, new metal-free and metallo-phthalocyanine complexes (Co, TiO) were synthesized using a piperazine-substituted phthalonitrile derivative. All proposed structures were supported by instrumental methods. ... -
A simple and efficient synthesis of novel inhibitors of alpha-glucosidase based on benzimidazole skeleton and molecular docking studies
(Academic Press Inc Elsevier Science, 2016)A novel series of benzimidazole derivatives were prepared starting from o-phenylenediamine and 4-nitro-o-phenylenediamine with iminoester hydrochlorides. Acidic proton in benzimidazole was exchanged with ethyl bromoacetate, ... -
Synthesis of new fluorine-containing 1,2,4-triazole-5-on derivatives with their anti-urease, anti-xanthine oxidase and antıoxidant activities
(Editura Acad Romane, 2016)Acetohydrazide derivatives (3a, b) were obtained starting from 3-(2 or 4-fluorobenzyl)-4-amino-4,5-dihydro-1H-1,2,4-triazole-5-one (la, b) by two steps. Compounds 3a, b were converted to the corresponding methylideneacetohydrazide ... -
Novel zinc(II)phthalocyanines bearing azo-containing schiff base: Determination of pKa values, absorption, emission, enzyme inhibition and photochemical properties
(Elsevier Science Bv, 2016)Azo-containing schiff bases are well known and there are many studies about their various properties in literature. However, phthalocyanines bearing azo-containing schiff bases, their spectral, analytical and biological ... -
Molecular docking studies and synthesis of novel bisbenzimidazole derivatives as inhibitors of alpha-glucosidase
(Pergamon-Elsevier Science Ltd, 2016)A series of bisbenzimidazole derivatives starting from o-phenylenediamine and 4-nitro-o-phenylenediamine were prepared with oxalic acid. Most of the reactions were conducted using both the microwave and conventional methods ... -
Efficient synthesis ofbBenzimidazoles containing 1,2,4-triazol-3-one nucleus using microwave technique
(Springer, 2016)A series of new compounds containing both benzimidazole and 1,2,4-triazol-3-one rings was synthesized by microwave irradiation of mixtures containing 5-(alkyl/phenyl)-4-(4-carboxyphenyl)-2,4-dihydro-3H-1,2,4-triazol-3-ones ... -
Inhibition properties of propolis extracts to some clinically important enzymes
(Taylor & Francis Ltd, 2016)The present study was conducted to envisage inhibition effects of propolis on the crucial enzymes, urease, xanthine oxidase (XO) and acetylcholinesterase (AChE). Some of the antioxidant properties of the propolis samples ... -
Effect of propolis in gastric disorders: inhibition studies on the growth of Helicobacter pylori and production of its urease
(Taylor & Francis Ltd, 2016)There is considerable interest in alternative approaches to inhibit Helicobacter pylori (H. pylori) and thus treat many stomach diseases. Propolis is a pharmaceutical mixture containing many natural bioactive substances. ...
