Ionic hydrogenation of azines: An efficient synthesis of 1,2-dialkylhydrazines

An efficient synthetic method of ionic hydrogenation of azine to the corresponding 1,2-dialkylhydrazines was accomplished. Reaction time was fast and isolation and purification of the 1,2-dialkylhydrazines were operationally simple. Yields were almost quantitative for most of the products with good functional group tolerance. Moreover, the byproduct of reduction gave the opportunity for the selective synthesis, in situ, of the mono hydrazide extending the potentiality of the synthetic method described.