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Electrochemical reduction of 1,2,4,6-substituted pyridinium cations

✍ Scribed by J. Volke; J. Urban; V. Volkeová

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
360 KB
Volume
39
Category
Article
ISSN
0013-4686

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✦ Synopsis

In aprotic solvents such as dimethylformamide, acetonitrile or dimethylsulphoxide, the mechanism of electrochemical reduction of 1,2,4,6-substituted pyridinium cations was investigated. The stability of the key intermediate in the overall two-electron reduction, ie of the neutral radical, was increased by substituting the positions 2, 4 and 6 by phenyl groups. The measurements were carried out by dc polarography and cyclic voltammetry at mercury, platinum and carbon electrodes.

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