Immobilization of Lewis Acidic Ionic Liquid on Perlite Nanoparticle Surfaces As a Highly Efficient Solid Acid Catalyst for the Solvent-free Synthesis of Xanthene Derivatives
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In this study, perlite nanoparticles were prepared through a simple method and then modified with Lewis acidic ionic liquid (perlite NP@IL/ZrCl) through a two step procedure. The prepared solid acid catalyst was characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDX) and thermo gravimetric analysis (TGA). Perlite NP@IL/ZrCl was used as a new solid acid, reusable and green heterogeneous nanocatalyst for the one-pot synthesis of xanthene derivatives. Synthesis of xanthenes was performed under solvent free conditions using a catalytic amount (0.005 g, 0.4 mol%) of the prepared catalyst with simple work-up and high to excellent yield of products. The reusability and high efficiency of this catalyst makes this method attractive for large scale environment-friendly operations.
Mannaa M, Mlahi M, Al Maofari A, Ahmed A, Hassan S ACS Omega. 2023; 8(29):26379-26390.
PMID: 37521672 PMC: 10372942. DOI: 10.1021/acsomega.3c02911.