Maghemite-Copper Nanocomposites: Applications for Ligand-Free Cross-Coupling (C-O, C-S, and C-N) Reactions

作者：Sharma Rakesh K^*; Gaur Rashmi; Yadav Manavi; Rathi Anuj K; Pechousek Jiri; Petr Martin; Zboril Radek; Gawande Manoj B

来源：ChemCatChem, 2015, 7(21): 3495-3502.

DOI：10.1002/cctc.201500546

• copper
• cross-coupling
• heterogeneous catalysis
• magnetism
• sustainable chemistry

A magnetically retrievable, efficient, and benign maghemite-Cu nanocatalyst was synthesized from inexpensive precursors and applied for C-O, C-N, and C-S bond-formation reactions. The obtained maghemite-Cu nanocatalyst was characterized by various techniques such as XRD, X-ray photoelectron spectroscopy, field-emission gun SEM with energy-dispersive spectroscopy, atomic absorption spectroscopy, TEM, high-angle annular dark-field scanning transmission electron microscopy, FTIR spectroscopy, and Mossbauer spectroscopy. Excellent catalytic activity, ease of recovery, and reusability without a significant loss of yield make the present protocol highly sustainable to deal with industrial and environmental concerns.

• 出版日期2015-11-2