Non-Aqueous medium titrations of some 3-alkyl(aryl)-4-[3-(2-metylbenzoxy)-4-methoxybenzylideneamino]-4,5-dihydro-1H-1,2,4-triazol-5-ones

Authors : Haydar Yüksek, Osman Kutanis, Sevda Manap, Gül Özdemir, Zafer Ocak

Pages : 54-55

Doi:10.51435/turkjac.940812

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Publication Date : 2021-12-30

Article Type : Research

Abstract :A series of 3-alkyl(aryl)-4-[3-(2-metylbenzoxy)-4-methoxybenzylideneamino]-4,5-dihydro-1H-1,2,4-triazol-5-ones (1-9) were titrated potentiometrically with tetrabutylammonium hydroxide in four non-aqueous solvents such as isopropyl alcohol, tert-butyl alcohol, acetonitrile and N,N-dimethylformamide (DMF), and graphs were drawn for all cases. The half-neutralization potential values and the corresponding pKa values were determined by half neutralization method. Thus, the effects of solvents and molecular structure upon acidity were discussed.
Keywords : 1, 2, 4-triazol-5-one, Schiff base, acidity, potentiometric titrations, pKa