Magnetically recyclable magnetite–palladium (Nanocat-Fe–Pd) nanocatalyst for the Buchwald–Hartwig reaction

Sofia Sá; Manoj B. Gawande; Alexandre Velhinho; João Pedro Veiga; Nenad Bundaleski; João Trigueiro; Alexander Tolstogouzov; Orlando M. N. D. Teodoro; Radek Zboril; Rajender S. Varma; Paula S. Branco

doi:10.1039/C4GC00558A

Magnetically recyclable magnetite–palladium (Nanocat-Fe–Pd) nanocatalyst for the Buchwald–Hartwig reaction†

Sofia Sá,^a Manoj B. Gawande,*^ab Alexandre Velhinho,^c João Pedro Veiga,^c Nenad Bundaleski,^d João Trigueiro,^d Alexander Tolstogouzov,^d Orlando M. N. D. Teodoro,^d Radek Zboril,^b Rajender S. Varma*^e and Paula S. Branco*^a

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* Corresponding authors

^a REQUIMTE, Department of Chemistry, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Lisbon, Portugal
E-mail: paula.branco@fct.unl.pt
Fax: +351 212948550
Tel: +351 212948300

^b Regional Centre of Advanced Technologies and Materials, Faculty of Science, Department of Physical Chemistry, Palacky University, Šlechtitelů 11, Olomouc, Czech Republic
E-mail: manoj.gawande@upol.cz

^c CENIMAT/I3N Departmento de Ciência dos Materiais, Faculdade de Ciências e Tecnologia, FCT, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal

^d Centre for Physics and Technological Research (CeFITec), Department of Physics, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal

^e Sustainable Technology Division, National Risk Management Research Laboratory, US Environmental Protection Agency, 26 West Martin Luther King Drive, MS 443, Cincinnati, Ohio, USA
E-mail: Varma.Rajender@epa.gov

Abstract

The immobilization of Pd on the magnetite surface afforded Nanocat-Fe–Pd using inexpensive precursors and its catalytic role in the Buchwald–Hartwig reaction for arylation of amines and amides was investigated; C–N bond formation was achieved in moderate to excellent yields and the catalyst could be separated and recycled up to five cycles by magnetic decantation without a significant loss in yield.

Green Chemistry

Magnetically recyclable magnetite–palladium (Nanocat-Fe–Pd) nanocatalyst for the Buchwald–Hartwig reaction†

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Magnetically recyclable magnetite–palladium (Nanocat-Fe–Pd) nanocatalyst for the Buchwald–Hartwig reaction

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