Abstract
A study of the reactivity of HO 2 O 2 − with unsaturated hydroperoxides/peroxides was carried out in a stopped-flow spectrophotometer equipped with an O 2 −-generating plasma lamp. The results show that, in 80% aqueous ethanol solution containing either 0.05 m H 2SO 4 (for HO 2 studies) or 0.005 m KOH (for O 2 − studies), these oxy-radicals do not react with oleic acid hydroperoxide, linoleic acid hydroperoxide, 1-hydroperoxy-2-cyclooctene, and tert-butyl allyl peroxide. These findings are discussed in the light of conflicting evidence concerning the reaction of HO 2 O 2 − with organic hydroperoxides/ peroxides.
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