Abstract: Sterically hindered N-alkoxy amines 3 are synthesized in good yields by coupling nitroxides 2 with hydrocarbyl radicals generated in situ by t- BuOOH hydrogen abstraction from hydrocarbons. The reaction is catalyzed by copper halides as well as by onium iodides. ... Keywords: N-alkoxy amines; tert-butyl hydroperox- ide; copper; hydrocarbons; nitroxides; oxidation; phase-transfer catalysis; radical reactions; TEMPO