Sc(OTf)3 catalyzed highly rapid and efficient synthesis of β-enamino compounds under solvent-free conditions

β-Dicarbonyl compounds undergo smooth condensation with aliphatic and aromatic amines in the presence of scandium triflate (Sc(OTf)3) under solvent-free conditions to afford the corresponding β-enamino compounds in excellent yields. The catalyst can be recovered by simple filtration and can be recycled in subsequent reactions. The method is simple, cost-effective and environmentally benign.

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