Cu(II)-acetylacetone complex covalently anchored onto magnetic nanoparticles: Synthesis, characterization and catalytic evaluation in amide bond formation via oxidative coupling of carboxylic acids with N,N-dialkylformamides

Magnetic nanoparticles coated with silica was modified with acetylacetone (acac) followed by copper chloride and employed as a heterogeneous catalytic system in oxidative coupling of carboxylic acids with N,N-dialkylformamides for the preparation of amides.