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Chemical activity of 1O2 (modified from [5]). 1O2 is a strong electrophilic species which can react with molecules containing double bonds, leading to formation of (a) dioxitanes, (b) hydroperoxides, or (c) endoperoxides. Reaction with thiols leads to the oxidation of sulfur and formation of sulfoxides (d) and sulfonic acids (e). R, R1–R4—side chains.
