Reductive cleavage of azo compounds by zinc and ammonium chloride

Azo compounds are reduced to corresponding anilines with zinc dust in the presence of ammonium chloride in methanol at room temperature

Facile water mediated chemo-selective synthesis of anilines from nitroarenes using triethylammonium formate

1304-1307A simple and efficient protocol for the chemo-selective reduction of substituted nitroarenes to corresponding anilines in good yields using inexpensive commercial zinc dust and triethylammonium formate in water at ambient temperature and pressure is established. Many other reducible functional groups like methoxy, methyl, ester, nitrile, amide, acid, phenol and halogens are unaltered with the present systems. </span

Ammonium chloride mediated reduction of azo compounds to hydrazo compounds

The reduction of azo compounds with magnesium powder as catalyst in the presence of ammonium chloride at room temperature in methanol leads to hydrazo compounds