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3. 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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4. ChemInform Abstract: Efficient Sonogashira and Suzuki-Miyaura Coupling Reaction Catalyzed by Pd-Nanoparticles.

Author

Balsane, Kishor E., Shendage, Suresh S., and Nagarkar, Jayashree M.

Subjects
*SONOGASHIRA reaction, *SUZUKI reaction, *COUPLING reactions (Chemistry), *PALLADIUM compounds, *NANOPARTICLES
Abstract

Pd nanoparticles, electrochemically deposited on Nafion-graphene, show excellent catalytic activity in the title C-C cross-coupling reactions. [ABSTRACT FROM AUTHOR]

Published
2015
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5. ChemInform Abstract: 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
*BENZOTHIAZOLE derivatives, *MAGNETIC properties of nanostructured materials, *CERIUM oxides, *LIGANDS (Chemistry), *CARBON-hydrogen bonds, *ARYLATION, *HETEROCYCLIC compounds
Abstract

The catalytic system proves valuable for the 2-functionalization of benzoxazole and benzothiazole with various aryl iodides, aryl bromides, and the cheaper aryl diazonium tetrafluoroborates. [ABSTRACT FROM AUTHOR]

Published
2015
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