Hydrogenation of β-N-Substituted and β-N,N-Disubstituted Enamino Esters in the Presence of Iridium(I) Catalyst

Several new beta-amino esters were prepared in two simple steps from beta-keto ester derivatives and primary and secondary amines under mild conditions. The hydrogenation of various enamino esters was performed at 50 degrees C in the presence of iridium catalysts. The new beta-N-substituted amino esters were isolated in high yields.