Synthesis and some properties of the salts of N-(het)aryl-N´-hydroxydiazene N-oxides

Salts of N-(het)aryl-N´-hydroxydiazene N-oxides were synthesized by the reaction of sodium nitrohydroxylaminate (Angeli´s salt) with the appropriate nitro compounds. The ion exchange reactions gave the corresponding copper and lead salts. The thermal stability of the synthesized salts was evaluated. Methylation of the synthesized salts afforded N-(het)aryl-N´-methoxydiazene N-oxides.