Palladium−Imidazolium Carbene Catalyzed Mizoroki−Heck Coupling with Aryl Diazonium Ions
Organic Letters2002Vol. 4(12), pp. 2079–2082
Citations Over TimeTop 10% of 2002 papers
Abstract
[reaction: see text] Catalyst formed from N,N-bis(2,6-diisopropylphenyl)dihydroimidazolium chloride and palladium(II) acetate (2 mol %) was used, without added base, to efficiently produce Heck coupled products with olefins and aryl diazonium tetrafluoroborate substrates. The reactions were performed at room temperature, giving product in 2-4 h with 80-90% yields for isolated materials. Diazonium ions, formed in situ directly from anilines, also couple under these conditions.
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