Anthony J. Bellamy, David I. Innes, Peter J. Hillson
1983
Citations
0
Influential Citations
2
Citations
Journal
Journal of The Chemical Society-perkin Transactions 1
Abstract
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 absence 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).