P. Hapiot, J. Pinson
Dec 30, 1993
Citations
0
Influential Citations
11
Citations
Journal
Journal of Electroanalytical Chemistry
Abstract
Abstract Electrochemical oxidation of several 4-substituted-2,6-diphenylphenolates was studied in acetonitrile by different electrochemical methods. A variety of mechanisms are operative in this series of compounds: 2,6-diphenylphenolate ( 1 − ) is irreversibly oxidized to a dimer and then to diphenoquinone; 4-nitro-2,6-diphenylphenolate ( 2 − ) is reversibly oxidized to a dimer which gives rise to 2,6-diphenylbenzoquinone; a disproportionation of the 4-amino-2,6-diphenylphenoxyl radical ( 3 . ) obtained upon oxidation of the corresponding phenolate 3 − leads to the formation of the 2,6-diphenylquinoneimine; the 2,4,6-triphenylphenolate ( 4 − ) undergoes a reversible dimerization.