Kurum Yazarı "Kahveci, Bahittin" İçin Listeleme
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Determination of protonation constants of some 3-alkyl(aryl)-4-(ptert- butyl(benzyl/benzyliden)amino)-4,5-dihydro-1H-1,2,4-triazole-5- one deriveatives with spectrophotometric method
The protonation constant values of different twelve 3-alkyl(aryl)-4-(p-t-butyl(benzyl/ benzyliden)amino)-4,5-dihydro-1H-1,2,4-triazole-5-one derivatives have been determined in ethanol %50 - water %50 mixtures by ... -
Determination of the pKa of Some triazole derivatives by the potentiometric method in dioxan-water mixtures
İslamoğlu, Fatih; Kahveci, Bahittin (2011)Stoichiometric protonation constants of some 3-alkyl(aryl)-4-(substituted benzylamino)-4,5-dihydro-1 H-1,2,4-triazol-5-ones derivatives were determined potentiometrically in 50% (v/v) dioxan-water mixtures at 25°C with an ... -
Determination of the protonation constants of triazole derivatives in non-aqueous solvents
İslamoğlu, Fatih; Kahveci, Bahittin; Özil, Musa; Akyüz, Emine; Menteşe, Emre; Ekinci, Arife Pınar (2009)Different 17 triazole derivatives were titrated with tetrabutylammonium hydroxide in four non-aqueous solvents (isopropyl alcohol, rert-butyl alcohol, N,N-dimethylformamide and acetonitrile), using Potentiometric method. ... -
Microwave-assisted and conventional synthesis of new phthalocyanines containing 4-(p-fluorophenyl)-3-methyl-4,5-dihydro-1H-1,2,4-triazol-5-one moieties
Kahveci, Bahittin; Özil, Musa; Kantar, Cihan; Şaşmaz, Selami; Işık, Şamil; Köysal, Yavuz (Elsevier, 2007)New metal-free and metal (Zn, Ni, Cu and Co) phthalocyanines containing 4-(p-fluorophenyl)-3-methyl-4,5-dihydro-1H-1,2,4-triazol-5-one moiety have been prepared from 1-(3,4-dicyanophenyl)-4-(p-fluorophenyl)-3-methyl-4,5- ... -
Microwave-assisted synthesis and antifungal activity of some new 1H-1,2,4-triazole derivatives
Kahveci, Bahittin; Özil, Musa; Menteşe, Emre; Bekircan, O.; Buruk, K. (Springer, 2008)A number of 3-aryl-4-arylmethylideneamino-4,5-dihydro-1H-1,2,4-triazol-5- ones were synthesized by reaction of the corresponding aromatic aldehydes with 4-amino-3-aryl-1H-1,2,4-triazol-5-ones in anhydrous ethanol under ... -
Microwave-assisted synthesis of novel 2,4-dihydro-5-[4-(trifluoromethyl) phenyl]-3h-1,2,4-triazol-3-ones and potentiometric determination of their pKa in nonaqueous solvents
Özil, Musa; İslamoğlu, Fatih; Menteşe, Emre; Kahveci, Bahittin (Wiley, 2010)The novel 4-amino- or 4-aryl-substituted 2,4-dihydro-5-[(4-trifluoromethyl) phenyl]-3H-1,2,4-triazol-3-ones 3a-3g were synthesized by reaction of N-(ethoxycarbonyl)-4-(trifluoromethyl)benzenehydrazonic acid ethyl ester (2) ... -
Microwave-assisted synthesis of some new benzylidenamino compounds and potentiometric determination of their pKa
A growing body of literature has shown the effectiveness of using microwaves in chemical reactions. The aim of this study is to demonstrate a rapid and highly efficient synthesis of some new benzylidenamino compounds (4a-f) ... -
Rapid and efficient microwave-assisted synthesis of some new triazol-3-one derivatives
Menteşe, Emre; Özil, Musa; Karaoğlu, Şengül Alpay; Kahveci, Bahittin (Wiley, 2013)A growing body of literature has shown the effectiveness of using microwaves in chemical reactions. The aim of this study is to demonstrate a rapid and highly efficient synthesis of some new triazol-3-ones via microwave ... -
Studies on the protonation constants of some triazoles in ethanol-water mixtures
İslamoğlu, Fatih; Kahveci, Bahittin; Özil, Musa; Akyüz, Emine (Chemical Publishing Co., 2008)Several studies, involving the formation and investigation of biological activities of some triazoles derivatives. These derivatives have weak acidic properties. To gain more information about the effect of solvent on ... -
Synthesis and anticancer evaluation of some new 4-amino-3-(p-methoxybenzyl) -4,5-dihydro-1,2,4-triazole-5-one derivatives
Bekircan, Olcay; Küçük, Murat; Kahveci, Bahittin; Bektaş, Hakan (Verlag der Zeitschrift fur Naturforschung, 2008)4-Amino-3-p-methoxybenzyl-5-oxo-4,5-dihydro-1,2,4-triazol-1-yl-acetic acid ethyl ester (2) was prepared from 4-amino-4,5-dihydro-1H-1,2,4-triazole-5-one (1) and ethyl bromoacetate. Compound 3 was synthesized by the ... -
Synthesis of 1,2,4-Triazole derivatives and determination of protonation constant
A microwave irradiation method has been developed for the synhesis of some 1,2,4-triazole derivatives using environmentally benign solvent ethanol in open vessels. Twelve 1,2,4-triazole derivatives were synthesized in good ... -
Synthesis of novel triazol compounds containing isatin as potential antibacterial and antifungal agents by microwave and conventional methods
Özil, Musa; Menteşe, Emre; Yılmaz, Fatih; İslamoğlu, Fatih; Kahveci, Bahittin (Sage Publishing, 2011)Microwave irradiation has been used to accelerate the conversion of isatin (1a) and 5-nitroisatin (1b) into their Schiff bases 3-[5?-aryl(alkyl)- 2?,4?-dihydro-1?,2?,4?-triazol-3?-on- 4?-yl]iminoisatin (3a-g) and ... -
Synthesis of some N-alkoxycarbonyl-N"-benzoyl-benzamidrazones(p- toluamidrazones) and 1,3,5-trisubstituted 1,2,4-triazole derivatives from N-benzoylimidates and their antimicrobial and anticancer screening studies
Bekircan, Olcay; Kahveci, Bahittin; Özgümüş, Osman Birol (Wiley, 2007)Some new N-alkoxycarbonyl-N?-benzoyl-benzamidrazones (p-toluamidrazones) 3a-3d, and 1,3,5-trisubstituted 1,2,4-triazole 4a-4h derivatives by starting from N-benzoylbenzimidates or N-benzoyl-p-toluimidates. The structures ...