Preparation and characterization of copper chloride supported on citric acid‐modified magnetite nanoparticles (Cu2+-CA@Fe3O4) and evaluation of its catalytic activity in the reduction of nitroarene compounds.

A new, powerful and recyclable copper catalyst were prepared by heterogenization of copper chloride using of Fe3O4 nano particles modified with citric acid as a linker. This system can catalyze reduction of nitroaren compound to aniline derivatives in the presence of Sodium borohydride as a reduction agent in moderate to good yields. In addition, easy separation and recoverable with an external permanent magnet is the dominant properties of this catalyst (Cu2+-CA@Fe3O4). [ABSTRACT FROM AUTHOR]