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Issue 9, 2003
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Deuterated analogues of the free radical trap DEPMPO: synthesis and EPR studies

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Abstract

Three analogues of 5-diethoxyphosphoryl-5-methyl-1-pyrroline N-oxide (DEPMPO, 1) labelled with two (1-d2), five (1-d5) or seven (1-d7) 2H were synthesized and used to trap the tert-butylperoxyl radical. The EPR spectra of 1-d2-OOBut and 1-d7-OOBut spin adducts exhibited more straightforward patterns and better signal to noise ratio than those obtained with 1 or 1-d5. The use of the easily available 1-d2 as spin trap could help significantly the analysis of the EPR signals when the signal of either superoxide or alkylperoxyl spin adduct is superimposed with the signals of other spin adducts.

Graphical abstract: Deuterated analogues of the free radical trap DEPMPO: synthesis and EPR studies

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Article information


Submitted
24 Jan 2003
Accepted
18 Mar 2003
First published
08 Apr 2003

Org. Biomol. Chem., 2003,1, 1591-1597
Article type
Paper

Deuterated analogues of the free radical trap DEPMPO: synthesis and EPR studies

J. Clément, J. Finet, C. Fréjaville and P. Tordo, Org. Biomol. Chem., 2003, 1, 1591
DOI: 10.1039/B300870C

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