Catalytic Direct Arylations in Polyethylene Glycol (PEG): Recyclable Palladium(0) Catalyst for C−H Bond Cleavages in the Presence of Air
作者:Lutz Ackermann、Rubén Vicente
DOI:10.1021/ol9020354
日期:2009.11.5
Two protocols for ruthenium- or palladium-catalyzed direct arylations in user-friendly polyethylene glycol (PEG) were devised, which set the stage for the development of user-friendly palladium(0)-catalyzedC−H bond functionalizations in the presence of air with a recyclable phosphine ligand-free palladium complex.
Mechanistic Insight into Direct Arylations with Ruthenium(II) Carboxylate Catalysts
作者:Lutz Ackermann、Rubén Vicente、Harish K. Potukuchi、Valentina Pirovano
DOI:10.1021/ol102187e
日期:2010.11.5
Mechanistic studies revealed ruthenium-catalyzed direct arylations to proceed through reversible C-H bond activation and subsequent rate-limiting oxidative addition with aryl halides, which led to the development of widely applicable well-defined ruthenium(II) carboxylate catalysts.