Copper-Catalyzed Direct Amination of Halo(hetero)arenes with Sodium Azide as the Amino Source

In the synthesis of primary (hetero) aryl amines through copper-catalysis, the ammonia surrogates or aqueous ammonia nucleophilic partners can be replaced by sodium azide. Recent efforts in copper-mediated transformation of (hetero) aryl halides to (hetero) aryl amines using azide anion as the amino source are discussed in these highlights.