| abstract |
The invention relates to a method for the racemization of optically active amines by reacting the optically active amine in the presence of hydrogen and of a hydrogenation or dehydrogenation catalyst at an elevated temperature. According to the invention the reaction is carried out in the liquid phase and the catalyst contains the catalytically active components copper, silver, iron, cobalt, nickel, ruthenium, rhodium, palladium, osmium, iridium and/or platinum as well as a carrier material chosen from the group of aluminium oxide, zirconium dioxide, titanium dioxide, carbon and/or oxygen-containing silicium compounds. |