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Electrochemical behaviour at the mercury electrode of sulphapyridine and its N1-methyl derivative in dimethylformamide

✍ Scribed by G. Battistuzzi Gavioli; G. Grandi; L. Benedetti; R. Andreoli

Publisher
Elsevier Science
Year
1983
Tongue
English
Weight
476 KB
Volume
28
Category
Article
ISSN
0013-4686

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✦ Synopsis

The electrochemical behevmur in DMF of sulphapyridine and its N,-methyl derivative was studied by means of polarographic, coulometric and cyclic voltammetric methods. Polarographic analysis pointed out the effect of the adsorption on the reduction mechanism and allowed to settle the range of concentratmn and dropping time in which E, r2 is only determined by the electron transfer; in these conditions E, ,I may be regarded as a structural parameter, so that a value of Q, related to the effect of the pyridinil group on the reactive site was determined.

Coulometric measurements let the reduction products be characterized, the overall reduction mechanism came out quote similar to that of other benzenesulphonamide derivatives. Moreover, the cyclic voltammetric behaviour showed thjt the reduction is affected also by the adsorption of the reduction products on the electrode surface.

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