An Update on Half-decade Recent Advances in Functionalized Fe3O4 Nanoparticles as Heterogeneous Nanocatalysts for the Synthesis of Six-Membered Compounds Containing Nitrogen: A Mini-Review

Over the past half-decade, the functionalized Fe3O4 nanoparticles have been applied to organic synthesis as heterogeneous nanocatalysts. Due to the magnetic properties, the functionalized Fe3O4 nanoparticles have been preferred over other catalytic systems. In addition, the unique physical, chemical, and magnetic field properties of Fe3O4 nanoparticles have led to the development of them for efficient organic synthesis as heterogeneous catalytic systems. Over the past half-decade, all the researchers tried to design and develop different functionalized Fe3O4 nanoparticles to perform the organic transformation. In this mini-review, different methodologies for the synthesis of six-membered compounds (heterocyclic compounds) containing nitrogen catalyzed by functionalized Fe3O4 nanoparticles have been reviewed. This short review aims to comprehensively investigate the use of functionalized Fe3O4 nanoparticles in the synthesis of six-membered compounds (heterocyclic compounds) containing nitrogen with emphasis on their reusability of the catalysts and magnetic field of them in separation from the organic reaction medium.