ELECTROCHEMICAL REDUCTION OF 1,2,4,6-SUBSTITUTED PYRIDINIUM CATIONS

Authors
VOLKE J URBAN J VOLKEOVA V
Citation
J. Volke et al., ELECTROCHEMICAL REDUCTION OF 1,2,4,6-SUBSTITUTED PYRIDINIUM CATIONS, Electrochimica acta, 39(13), 1994, pp. 2049-2054
Citations number
18
Categorie Soggetti
Electrochemistry
Journal title
Electrochimica acta → ACNP
ISSN journal
00134686
Volume
39
Issue
13
Year of publication
1994
Pages
2049 - 2054
Database
ISI
SICI code
0013-4686(1994)39:13<2049:ERO1PC>2.0.ZU;2-E
Abstract
In aprotic solvents such as dimethylformamide, acetonitrile or dimethy lsulphoxide, the mechanism of electrochemical reduction of 1,2,4,6-sub stituted 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 ph enyl groups. The measurements were carried out by dc polarography and cyclic voltammetry at mercury, platinum and carbon electrodes.