Abstract
Abstract Magnetically separable CuO nanoparticles supported on graphene oxide (Fe 3 O 4 NPs/GO–CuO NPs) is synthesized and characterized for the preparation of propargylamines in EtOH, at 90 °C. Fe 3 O 4 NPs/GO–CuO NPs is found to be an efficient catalyst for the A 3 -coupling of aldehydes, amines, and alkynes through C H activation. Both aromatic and aliphatic aldehydes and alkynes are combined with secondary amines to provide a wide range of propargylamines in moderate to excellent yields.
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