The application of magnetic nanoparticles based β-cyclodextrin as recoverable catalyst in various organic transformations: An overview

Magnetite nanoparticles (MNPs), owing to their vast surface area, low toxicity, and biocompatibility, present a lot of chemical and biotechnological uses. Over the past decade, extensive attention has been expended on applying Fe 3 O 4 nanoparticles as magnetically reusable solid support for various transition metals. The benefits of magnetic nanocatalytics are their simple separation by an external magnet, extreme reactivity, and a vast surface area of the catalysts. Also, the magnetic features of these catalysts induce their dispersion to be reversibly controlled via the magnetic field. Therefore, MNPs can be dispersed well in the reaction media. β-Cyclodextrin (β-CD), as a cyclic oligomer, has been extensively employed as an economical and eco-friendly alternative catalyst in diverse organic conversions that improved reaction efficiency. The modified β-CD with Fe 3 O 4 led to mainly advantageous catalysts because of their helpful catalytic properties, eco-friendliness, easy separation, and ability to isolate from the reaction medium. In this report, our goal is to present an overview of magnetically reusable nanoparticles-based β-CD. This review’s major focus is the application of magnetic nanomaterials as catalysts in different organic transformations.