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ISSN electronic edition: 1336-9075
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Polarographic behavior and acid-base properties of benzamide O-benzoyl oximes

F. Grambal and J. Lasovský

Department of Inorganic and Physical Chemistry, Faculty of Natural Sciences, Palacký University, 771 46 Olomouc


Abstract: The Polarographie reduction and basicity of a series of 27 0-(4-R'-)benzoyl-4-R-benzamide oximes in 50% aqueous ethanol has been studied. It has been found that the studied substances undergo a two-electron reduction to give amidines. The effect of pH upon E1/2 is discussed. Under the conditions of the investigation the substances behave as weak bibasic bases. The found half-wave potentials of the Polarographie reduction (E1/2) as well as the dissociation constants (pKa2) correlate with op constants of the substituents on the aromatic amide oxime ring.

Full paper in Portable Document Format: 335a621.pdf


Chemical Papers 33 (5) 621–629 (1979)

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