In this study, we synthesized a robust and sustainable Pd/SiO2 nanospheres catalyst. Further, its catalytic activity was demonstrated for the direct reductive coupling of nitroarenes under mild conditions. While the reaction with Pd nanoparticles on other supporting materials such as modified carbon materials and TiO2, under similar conditions, resulted formation of amines exclusively. Therefore, it was confirmed that the SiO2 was found to be the best supporting material towards the selective reductive coupling of nitroarenes. Also, the catalyst could be recycled up to five cycles with a marginal loss of product yield (< 2% yield).
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BL thanks to the University Grant Commission (UGC), New Delhi, India for the award of the fellowship.
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Lakshminarayana, B., Manna, A.K., Satyanarayana, G. et al. Palladium Nanoparticles on Silica Nanospheres for Switchable Reductive Coupling of Nitroarenes. Catal Lett (2020). https://doi.org/10.1007/s10562-020-03127-w
- Heterogeneous catalysis
- Hydrogenation of nitroarenes