A review of the recent application of magnetic silver nanocatalysts as an easily retrievable catalyst in nitroarene reduction

Reducing nitroarenes to aromatic amines is a powerful synthetic organic and industrial chemistry tool to synthesize amine products. In recent years, magnetite nanocatalysts have emerged as a promising and environmentally benign alternative to traditional noble metal catalysts in this reaction. Due to their significant surface area, excellent catalytic activity, and intrinsic magnetic properties, Magnetite nanoparticles facilitate facile separation and recyclability, thereby significantly enhancing the sustainability of the process. Silver nanoparticles (AgNPs) serve as catalysts that significantly improve the rate and selectivity of this transformation. The use of mild reducing agents, such as NaBH₄ or H₂, combined with these versatile nanocatalysts, facilitates the rapid and selective conversion of nitroarenes under mild conditions. This review highlights the potential of magnetic silver nanocatalysts as cost-effective, reusable, and eco-friendly materials for catalytic nitroarene reduction, offering a promising pathway for greener chemical synthesis. This review summarizes the preparation and applications of magnetic silver nanocatalysts as helpful and environmentally friendly catalysts for the hydrogenation of nitro compound reactions, covering the period from 2020 to 2025.