Issue 8, 1988
From the journal:

Journal of the Chemical Society, Perkin Transactions 2

Aminopyrine and antipyrine free radical-cations: pulse radiolysis studies of one-electron transfer reactions

Luigi G. Forni,   Victor O. Mora-Arellano,   John E. Packer  and  Robin L. Willson  

Abstract

Absolute rate constants for the reaction of a variety of electrophilic free radicals with the pyrazoline derivatives aminopyrine and antipyrine have been measured by pulse radiolysis. In the case of aminopyrine the resulting radical cation is a particularly stable species (ε325 5.35 × 103 dm3 mol–1 cm–1). Both compounds are readily oxidised to their respective radical-cations with the one-electron oxidation potential of antipyrine (E° 1.1–1.6 V) being higher than that of aminopyrine (E° 0.26–0.5 V). Studies of the reaction of the radical-cations with reducing agents suggest that aminopyrine in particular may prove to be a useful reference compound in studies of free radical one-electron oxidations.

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Article information

DOI
https://doi.org/10.1039/P29880001579
Article type
Paper

J. Chem. Soc., Perkin Trans. 2, 1988, 1579-1584

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Aminopyrine and antipyrine free radical-cations: pulse radiolysis studies of one-electron transfer reactions

L. G. Forni, V. O. Mora-Arellano, J. E. Packer and R. L. Willson, J. Chem. Soc., Perkin Trans. 2, 1988, 1579 DOI: 10.1039/P29880001579

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