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Green Protocol For The Rapid Generation Of Arylhydroxylamines And Hydrazoarenes In Water

Mohamed Afzal Pasha, Hemmaragala Marishetty Nanjundaswamy

Magnesium mediated vigorous reaction of hydrazinium sulfate in water rapidly generated arylhydroxylamines and arylamines from the corresponding nitro aromatics in excellent yields. Azoarenes and azoxyarenes under the same reaction conditions gave the respective hydrazoarenes. The reactions are very fast, give excellent yields of the product. Substituents such as OH, CH3, OCH3, and halogens are unaffected. The method affords an elegant route to the preparation of arylhydroxylamines and hydrazoarenes