Catalytic Chain-Breaking Pyridinol Antioxidants
- 2 October 2008
- journal article
- research article
- Published by American Chemical Society (ACS) in Organic Letters
- Vol. 10 (21) , 4895-4898
Abstract
When assayed for their capacity to inhibit azo-initiated peroxidation of linoleic acid in a water/chlorobenzene two-phase system, tellurium-containing 3-pyridinols were readily regenerable by N-acetylcysteine contained in the aqueous phase. The best inhibitors quenched peroxyl radicals more efficiently than α-tocopherol, and the duration of inhibition was limited only by the availability of the thiol reducing agent. The compounds were also found to catalyze reduction of hydrogen peroxide in the presence of thiol reducing agent.Keywords
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