"Oxidation of α,β-unsaturated ketones with alkaline hydrogen peroxide produces the corresponding keto epoxides in good yields. This nucleophilic epoxidation proceeds via an initial Michael-type addition of the hydroperoxide anion to the enone system … Treatment of enones with basic tert-butyl hydroperoxide provides an alternative route for epoxidation of enones when the alkaline hydrogen peroxide procedure fails."
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Epoxide
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