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Your search keyword '"Shelkar, Radheshyam S."' showing total 2 results
Start Over Author "Shelkar, Radheshyam S." Topic heterogeneous catalyst
2 results on '"Shelkar, Radheshyam S."'

2. Magnetically separable nano CeO2: a highly efficient catalyst for ligand free direct C–H arylation of heterocycles.

Author

Shelkar, Radheshyam S., Balsane, Kishor E., and Nagarkar, Jayashree M.

Subjects
*CERIUM oxides, *MAGNETIC separation, *LIGANDS (Chemistry), *CARBON-hydrogen bonds, *ARYLATION, *HETEROCYCLIC compounds
Abstract

An efficient, ligand free, nano CeO 2 –Fe 3 O 4 catalyzed direct C–H arylation of heteroarenes such as benzoxazole and benzothiazole has been carried out with aryl halides in DMSO or arenediazonium salts in water. The catalyst exhibited high activity with moderate to excellent product yields under mild reaction conditions. Nano CeO 2 –Fe 3 O 4 was synthesized and characterized by SEM, TEM, EDAX, XRD, FTIR, DSC-TGA, and ICP-MS analyses. The catalytic activity and stability of the catalyst were excellent, even after the ten cycle of recyclability [ABSTRACT FROM AUTHOR]

Published
2015
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