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Influence of different of ethanol percentages on pKa values for some imines derived from 3-acetyl and 4-acetyl pyridines | ||
| Iraqi National Journal Of Chemistry | ||
| Article 1, Volume 0, Issue 47, 2014, Pages 333-347 | ||
| Authors | ||
| Adel Saead Peter Azzouz; Rowa Daoud Sulaiman | ||
| Abstract | ||
| Abstract The work is concerned with the influence of different ethanol percentages in the range (10-50)vol. % at fixed 25Cº temperature on the values of ionization constants pKa for some acidic and basic imines . These imines are derived 3-acetyl and 4-acetyl pyridines in a forms of syn or anti oxime and phenolic or amino Schiff bases , containing phenol and primary amine groups in ortho , meta and p-positions on the aromatic ring of primary amine sides The plots of pKa values of acids versus the dielectric constants (D) of different alcoholic media show a different linear or curve shapes . These results were interpreted and discussed in details in this topic . | ||
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