Zirkonium‐katalysierte Oxidation von primären aromatischen Aminen zu Nitroverbindungen mit tert‐Butylhydroperoxid

Zirconium‐catalysed Oxidation of Primary Aromatic Amines to Nitro Compounds Using tert‐Butylhydroperoxide A broad range of primary aromatic amines (1a–x) with electron donating and accepting substituents are oxidized in good to excellent yields to the nitro compounds 3a–x using tert‐butylhydroperoxide as the oxidant and Zr(OtBu)4 as the catalyst. The corresponding nitroso compounds 2m, 2n, 2s and 2u can be isolated in the conversion of electron‐rich anilines 1m, 1n, 1s and 1u. The aminopyridines 5a–d are also converted to the corresponding nitropyridines 6a–d, but in lower yields (41–47%).