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A highly active polymeric magnetic nanocatalyst for the preparation of 3-carboxycoumarins derivatives under mild conditions
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1  Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran 1684613114, Iran


In this work, an efficient method for the synthesis of 3-carboxycoumarins was reported via Knoevenagel condensation. The reaction of Meldrum’s acid with substituted salicylaldehyde in the presence of polymeric magnetic nanocatalyst. This protocol has many advantages such as short reaction time, high yield, and easy isolation of the synthesized catalyst.

Keywords: Nanocatalyst, green chemistry, coumarin, salicylaldehyde, Knoevenagel condensation.