Abstract
This research introduced a novel nano catalyst, LDH@PTRMS@DCMBA@CuI, developed from nano copper immobilized on a layered double hydroxide modified with a new type of sulfonamide: N 1,N 3-dicarbamimidoylbenzene-1,3-disulfonamide (DCMBA). This catalyst demonstrated significant activity and selectivity in synthesizing 5-amino-1H-pyrazole-5-carbonitrile derivatives. The derivatives were produced via a three-component one-pot reaction combining benzaldehydes, malononitrile, and phenyl hydrazine in H2O/EtOH solvent at 55 °C. This innovative synthesis strategy offered several advantages, including eco-friendliness, simplicity, stability, mild reaction conditions, easy purification of products, short reaction times (15-27 min), and excellent yields (85-93%). Additionally, the green methodology was validated by the catalyst's reusability over four consecutive cycles without significant loss of catalytic activity.
Published Version
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