@article{Ghasemzadeh_Safaei-Ghomi_2024, title={Fe3O4@SiO2 nanoparticles: An efficient, green and magnetically reusable catalyst for the one-pot synthesis of 14-aryl-14H-dibenzo[a,i]xanthene-8,13-dione derivatives}, volume={6}, url={https://oiccpress.com/iranian-journal-of-catalysis/article/fe3o4sio2-nanoparticles-an-efficient-green-and-magnetically-reusable-catalyst-for-the-one-pot-synthesis-of-14-aryl-14h-dibenzoaixanthene-813-dione-derivatives/}, abstractNote={An efficient and eco-friendly method for the one-pot synthesis of 14-aryl-14H-dibenzo [a,i]xanthene-8,13-dione derivatives has been developed in the presence of Fe3O4@SiO2 core-shell nanoparticles. The multi-component reactions of 2-hydroxy-1,4-naphthoquinone, β-naphthol and aldehydes were efficiently catalyzed using novel nano-scale materials under reflux conditions. The present method offers several advantages such as environmentally benign, simple work-up, excellent yield of products, short reaction times, little catalyst loading and facile catalyst separation. The nanomagnetic catalyst could be readily recovered using a simple external magnet and reused several times without any significant loss in activity. The catalyst was fully characterized by FT-IR, SEM, XRD, EDX and VSM analysis.}, number={3}, journal={Iranian Journal of Catalysis}, publisher={OICC Press}, author={Ghasemzadeh, Mohammad Ali and Safaei-Ghomi, Javad}, year={2024}, month={Feb.}, keywords={Multi-component reactions, nanoparticles, Xanthene, Core-shell, Fe3O4@SiO2} }