Silica-supported perchloric acid and potassium bisulfate as reusable green catalysts for nitration of aromatics under solvent-free microwave conditions

Satish Kumar, M.; Sriram, Y. Hemanth; Venkateswarlu, M.; C. Rajanna, K.; Sudhakar, M. Sai; Venkanna, Purugula; Saiprakash, P. K.

doi:10.6084/m9.figshare.5528008

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Silica-supported perchloric acid and potassium bisulfate as reusable green catalysts for nitration of aromatics under solvent-free microwave conditions

Version 2 2017-12-15, 19:16

Version 1 2017-10-23, 14:49

journal contribution

posted on 2017-12-15, 19:16 authored by M. Satish Kumar, Y. Hemanth Sriram, M. Venkateswarlu, K. C. Rajanna, M. Sai Sudhakar, Purugula Venkanna, P. K. Saiprakash

Silica-supported perchloric acid and bisulfate (SiO₂/HClO₄ and SiO₂/KHSO₄) have been developed as reusable green catalysts for nitration of aromatic compounds using NaNO₂ in acetonitrile medium under conventional and solvent-free microwave conditions. The reaction times under microwave irradiation are significantly shorter than conventional method even though the yields obtained in microwave-assisted reactions are comparable with those obtained under reflux conditions.