Deep Eutectic Solvent as a Recyclable Catalyst for Three-Component Synthesis of β-Amino Carbonyls

We have reported one-pot, three-component Mannich type reaction of aldehyde, amines and ketone (acetone and acetophenones), catalyzed by deep eutectic solvent (choline chloride/zinc chloride) at room temperature to give β-amino carbonyls in good yields. The catalyst could be recycled at least four times without remarkable decrease in its catalytic activity. The general method is easy, fast and environmental...