Impregnated palladium on magnetite as catalyst for direct arylation of heterocycles
作者： Rafael Cano , Juana M. Pérez , Diego J. Ramón , Gerard P. McGlacken
DOI: 10.1016/J.TET.2015.12.039
关键词: Heterogeneous catalysis 、 Chemistry 、 Intramolecular force 、 Substrate (chemistry) 、 Magnetite 、 Regioselectivity 、 Catalysis 、 Organic chemistry 、 Palladium
摘要: Abstract Palladium impregnated on magnetite is an efficient, cheap and easy to prepare catalyst for the direct arylation of heterocycles. Good yields are afforded under relatively mild conditions a broad substrate scope evident. The regioselective in many cases, affording arylated products, at C2- or C3-position (depending heterocycle used). methodology can be extended chromenes through intramolecular reaction. Some evidence provided two deactivation pathways, which prevents efficient recycling.
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