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Ce0·98Pd0·02O2-δ: Recyclable, ligand free palladium(II) catalyst for Heck reaction

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Abstract

Palladium substituted in cerium dioxide in the form of a solid solution, Ce0·98 Pd0·02 O1·98 is a new heterogeneous catalyst which exhibits high activity and 100% trans-selectivity for the Heck reactions of aryl bromides including heteroaryls with olefins. The catalytic reactions work without any ligand. Nano-crystalline Ce0·98 Pd0·02 O1·98 is prepared by solution combustion method and Pd is in +2 state. The catalyst can be separated, recovered and reused without significant loss in activity.

Noble metal ionic catalyst, Ce0·98Pd0·02O1·98 is a new heterogeneous catalyst which exhibits high activity and 100% trans-selectivity for the Heck reactions of aryl bromides including heteroaryls with olefins.

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Acknowledgments

This work was supported by the Department of Science and Technology (DST) and Council of Scientific and Industrial Research (CSIR), New Delhi. The authors also thank the NMR Research Centre (NRC), Indian Institute of Science, for providing NMR spectra.

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Correspondence to M S HEGDE.

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Supporting information

NMR data of line products are given in the supporting information (see www.ias.ac.in/chemsci).

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SANJAYKUMAR, S.R., MUKRI, B.D., PATIL, S. et al. Ce0·98Pd0·02O2-δ: Recyclable, ligand free palladium(II) catalyst for Heck reaction. J Chem Sci 123, 47–54 (2011). https://doi.org/10.1007/s12039-011-0103-6

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  • DOI: https://doi.org/10.1007/s12039-011-0103-6

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