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A new copper/I 2 -catalyzed hydro xyamination of alkenes of unsaturated keto oximes with DMSO as the hydroxy oxygen atom resource and medium for assembling 2-(2-hydroxyalkyl)-3,4-dihydro-2 H -pyrrole 1-oxides is described. Mechanistic review experiments suggest that the response is terminated by single electron oxidation and subsequent nucleophilic reaction.
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