Journal
ADVANCED SYNTHESIS & CATALYSIS
Volume 353, Issue 1, Pages 125-132Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adsc.201000390
Keywords
ethylene glycol; iron oxide; magnetite (Fe3O4); nanoparticles; Sonogashira-Higahara reaction
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Funding
- Shiraz University Research Council
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A novel application of nanoparticles of paramagnetic magnetite (Fe3O4) as an efficient catalyst for carbon-carbon bond formation via the Sonogashira-Hagihara reaction under heterogeneous ligand-free conditions in ethylene glycol (EG) is described. By using this catalyst, arylalkynes are produced from the reaction of aryl iodides and activated heteroaryl bromides with alkynes. The results are reproducible using the catalyst, which was prepared from different sources. The catalyst is easily separated by an external magnetic field from the reaction mixture. The separated catalyst can be recycled for several consecutive runs without appreciable loss of its catalytic activity.
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