Abstract
AbstractIn this work, a new heterogeneous nanosized catalyst containing ionic liquid bridges was prepared based on kaolin (kaolin‐[BTMSP]‐NH2+ HSO4−). In order to characterize the catalyst, Fourier‐transform infrared spectroscopy (FTIR), energy dispersive spectrometer (EDS), X‐ray diffraction (XRD), thermogravimetric analysis (TGA), field emission scanning electron microscopy (FESEM), and CHNS elemental analysis were implemented. The catalytic performance of kaolin‐[BTMSP]‐NH2+ HSO4− was evaluated through the promotion of the one‐pot synthesis of polyhydroquinoline and 1,8‐dioxo‐decahydroacridine derivatives via the Hantzsch condensation reaction. The proposed methodology is capable of providing the target products during short reaction times in high yields under solvent‐free conditions. The use of inexpensive and readily available reagents for the synthesis of the catalyst, solvent‐free conditions, low catalyst loading, simple work‐up and reusability of the catalyst are considered as the prominent features of this method.
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