
Journal of the Chemical Society. Perkin transactions II p. 179 - 182 (1983)
Update date:2022-08-05
Topics:
Bellamy, Anthony J.
Innes, David I.
Hillson, Peter J.
A cyclic voltammetric study of 1-phenylpyrazolidin-3-one and some typical substituted analogues has shown that the chemical step following the initial electron transfer involves deprotonation of the cation-radical at position 2 (NH).In the abscence of added base and at substrate concentration >2mM, the substrate itself deprotonates the cation-radical.In the presence of basic chloride ions oxidation occurs via the conjugate base of 1-phenylpyrazolidin-3-one.The lifetime of the cation-radical is relatively insensitive to the nature of the substituents at C(4) and C(5), but is increased markedly by substitution at N(2).
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