A novel one-step radical-ionic cyclopropanation was carried out to prepare aza- or oxabicyclo[3.1.0]hexane from β-nitroamides or β-nitroethers in a stereoselective manner (see scheme). The present procedure involves a higher-order domino process that includes one-electron oxidation– radical cyclization–intramolecular SN2 reaction.
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Kamimura et al. (2009) studied this question.
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