Abstract
An electrochemical reduction method was used for the preparation of TiO2 nanoparticles in which agglomeration with formation of undesired metal powders is prevented by the presence of ammonium stabilizers. These synthesized nanoparticles were characterized by UV–Visible, XRD, SEM–EDS and TEM analysis techniques. These synthesized nanoparticles of TiO2 were tested as heterogeneous catalyst for the synthesis of tetrahydrobenzo[b]pyran derivative using three components reaction of aromatic aldehyde, dimedione and malononitrile by simply stirring at room temperature in a solvent free condition.
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Acknowledgments
The authors are grateful to the Department of Chemistry, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad and UGC-SAP-DRS-1 scheme New Delhi for providing the laboratory facility. One of the author (ASR) is thankful for financial assistance from UGC Major Research Project, New Delhi.
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Anandgaonker, P.L., Jadhav, S., Gaikwad, S.T. et al. Nanosized TiO2 as a Recyclable Heterogeneous Catalyst for the Synthesis of Tetrahydrobenzo[b]pyran Derivatives. J Clust Sci 25, 483–493 (2014). https://doi.org/10.1007/s10876-013-0626-8
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DOI: https://doi.org/10.1007/s10876-013-0626-8