Amberlyst-15?: An Efficient, Cost-Effective and Recyclable Hetero Geneous Solid Acid Catalyst for the Synthesis of β-Enaminones and β- Enamino Esters

摘要

The β-keto carbonyl compounds rapidly react with a variety of amines in the presence of Amberlyst-15? toproduce β-enamino compounds in excellent yields. The reaction conditions are very mild and applicable to a wide rangeof substrates and the reactions are conveniently performed at ambient temperature. The catalyst is recovered by simplefiltration and reused for further reactions.