Reductive alkylation of p-phenylenediamine and its hydroquinone complex with ketones in presence of rhenium and palladium sulfides

Advances in Rhenium Catalysts

“…Acetamide, benzamide, and other amides are hydrogenated to the corresponding amines in similar fashion. Secondary amines are prepared from primary amines by reductive alkylation of ketones over rhenium heptasulfide (26,64). There are no side reactions or cleavage of the carbon-nitrogen bond.…”