Abstract

One-pot, three-component Mannich reactions of ketones, aldehydes and amines were efficiently catalyzed by AlPW12O40 in water at ambient temperature to give the corresponding β-amino ketones in good to excellent yields. The method has the following merits: Firstly, Catalyst AlPW12O40 is non-corrosive and environmentally benign; Secondly, loading amount of catalyst is very low, less than 1 mol %; Thirdly, water as solvent is green and safe.

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