Fluorapatite-Supported Palladium Catalyst for Suzuki and Heck Coupling Reactions of Haloarenes

Autor:	K. B. Shiva Kumar, Bojja Sreedhar, M. Lakshmi Kantam, P. Srinivas
Rok vydání:	2007
Předmět:	Chemistry Aryl Inorganic chemistry Fluorapatite chemistry.chemical_element General Medicine General Chemistry Heterogeneous catalysis Apatite Catalysis chemistry.chemical_compound Benzonitrile Suzuki reaction visual_art Heck reaction visual_art.visual_art_medium Palladium Nuclear chemistry
Zdroj:	Advanced Synthesis & Catalysis. 349:1141-1149
ISSN:	1615-4169 1615-4150
DOI:	10.1002/adsc.200600387
Popis:	A fluorapatite-supported palladium catalyst (PdFAP) was synthesized by treatment of fluorapatite (prepared by incorporating the basic species fluoride ion into apatite in situ by co-precipitation) with bis(benzonitrile)palladium(II) chloride in acetone. The catalyst displayed high catalytic activity for Suzuki coupling of aryl iodides and bromides with boronic acids at room temperature and chloroarenes at 130 °C in the presence of tetrabutylammonium bromide to give biaryls in excellent yields. Heck olefination of chloroarenes was also successfully carried out by this catalyst. PdFAP was recovered quantitatively by simple filtration and reused with consistent activity. PdFAP was well characterized by XRD, FTIR, XPS, ICP-AES, CO 2 TPD and CHN elemental analysis.
Databáze:	OpenAIRE
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