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Preparation and application of highly efficient and reusable TBAPIL@Si(CH2)3@nano-silica-based nano-catalyst for preparation of benzoxanthene derivatives

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Abstract

Tetrabutylammonium prolinate ionic liquid (TBAPIL) was prepared, and mesoporous silica nanoparticles (NPs) were synthesized. Both of these were linked through propyltriethoxysilane to prepare a reusable catalyst TBAPIL@Si(CH2)3@silica NPs (TBAPILS). The formation of TBAPIL was checked through Fourier-transform infrared spectroscopy (FT-IR) and nuclear magnetic resonance (NMR) analysis. X-ray diffraction analysis confirmed the structure of silica NPs and linking of TBPAIL on it. Transmission electron microscopy proved the flourishing development of silica NPs. Scanning electron microscopy graphs exposed the altering in morphology of silica NPs and TBAPILS. FT-IR analysis also confirmed the formation of TBAPILS catalyst. Moreover, the effectiveness of the TBAPILS was also checked for the synthesis of various derivatives of tetrahydrobenzoxanthenes-11-ones. The formation and structure of obtained compounds were confirmed by FT-IR, elemental analysis, 1HNMR and 13C NMR spectral analysis. The catalyst TBAPILS was found to be used successfully up to five cycles without significant loss of activity.

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Acknowledgements

We are thankful to Govind Ballabh Pant University of Agriculture and Technology, Pantnagar (Uttarakhand), India, for providing necessary research facility and KIET Group of Institutions for constant help and support during the research. We would also thank Manish Kumar, IIT Ropar, for providing NMR spectra and ISFAL, Moga, for providing IR spectra.

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  1. Department of Chemistry, KIET Group of Institutions, Delhi-NCR, Meerut Road (NH-58), Ghaziabad, 201 206, India

    Akansha Agrwal

  2. Department of Physics, KIET Group of Institutions, Delhi-NCR, Meerut Road (NH-58), Ghaziabad, 201 206, India

    Vipin Kumar

  3. Department of Chemistry, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, India

    Virendra Kasana

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Agrwal, A., Kumar, V. & Kasana, V. Preparation and application of highly efficient and reusable TBAPIL@Si(CH2)3@nano-silica-based nano-catalyst for preparation of benzoxanthene derivatives. J IRAN CHEM SOC 18, 2583–2595 (2021). https://doi.org/10.1007/s13738-021-02211-1

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