A series of β-amino carbonyl compounds containing coumarin was synthesized by a three component Mannich reaction of 3-acetyl coumarin, aromatic aldehydes and aromatic amines in the presence of zirconium oxychloride ZrOCl2 .8H2Oas a catalyst. The present methodology offers several advantages such as high yields, simple procedure, low cost, short reaction times, mild reaction conditions and use of a reusable catalyst
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