Characteristics and use as spin trapping agent of a β-phosphorylated nitroso compound, DEPNP

2-(Diethylphosphonate)-nitrosopropane (DEPNP), prepared by oxidation of the corresponding aminophosphonate, was found to essentially exist as monomer in both water and organic solvents. The mechanisms of its degradation under 80°C heating or visible light exposure were studied by EPR spectroscopy: i...

Full description

Saved in:
Bibliographic Details
Published in:Free radical research 2001-01, Vol.34 (3), p.237-249
Main Authors: Roubaud, Valérie, Rizzi, Cécile, Guérin, Stéphanie, Lauricella, Robert, Bouteiller, Jean-Claude, Tuccio, Béatrice
Format: Article
Language:English
Subjects:
aminoxyl radical
Electron Spin Resonance Spectroscopy
free radical
nitroso compound
Nitroso Compounds - chemistry
Organophosphonates - chemistry
spin adduct
Spin Trapping
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:2-(Diethylphosphonate)-nitrosopropane (DEPNP), prepared by oxidation of the corresponding aminophosphonate, was found to essentially exist as monomer in both water and organic solvents. The mechanisms of its degradation under 80°C heating or visible light exposure were studied by EPR spectroscopy: its decomposition gave rise to paramagnetic by-products, which have been identified as DEPNP / ·C(CH3)2[P(O)(OC2H5)2] and DEPNP / ·P(O)(OC2H5)2 spin adducts. Despite this drawback, DEPNP was successfully used as spin trapping agents to scavenge various carbon - and phosphorus-centred free radicals both in aqueous and organic media, giving rise to intense EPR spectra characteristic of the species trapped.
ISSN:1071-5762
1029-2470
DOI:10.1080/10715760100300221