Simple Preparation of Nitroso Benzenes and Nitro Benzenes by Oxidation of Anilines with H₂O₂ Catalysed with Molybdenum Salts

Abstract

Nitroso arenes 2a-k are prepared in 53-80% yield from anilines 1a-k by oxidation with H₂O₂ catalysed with MoO₃/KOH, ammonium molybdate or other molybdenum salts. Further oxidation to nitro arenes 3a,d,j in 66-90% is also described.

Keys words

nitroso arenes - nitro arenes - oxidation - molybdenum salts

References

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22

At pH 11-12, it was shown that another species MoO(O₂)₃ ^2- decomposed with formation of singlet oxygen (¹O₂). [21] See a discussion in the lit. [21] for the participation of the red peroxo-anion Mo(O₂)₄ ^2- in the formation of O₂.