A homogeneous visible light photoredox TEMPO-mediated selective oxidation of primary alcohols to the corresponding carbonyl compounds was developed using molecular oxygen from air as the terminal oxidant. Ru(bpy) 3 (PF 6 ) 2 (bpy: bipyridyl) and Ir(dtb-bpy)(ppy) 2 (PF 6 ) (dtb-bpy: 4,4'-di-tert-butyl-2,2'-bipyridyl; ppy: 2-phenylpyridine) were used as the sensitizers.
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