Bimetallic Palladium Catalysis: Direct Observation of Pd(III)–Pd(III) Intermediates

 
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Powers, David C.
Geibel, Matthias A. L.
Klein, Johannes E. M. N.
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https://doi.org/10.1021/ja906935c
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Powers, David C., Matthias A. L. Geibel, Johannes E. M. N. Klein, and Tobias Ritter. 2009. Bimetallic palladium catalysis: Direct observation of Pd(III)–Pd(III) intermediates. Journal of the American Chemical Society 131(47): 17050–17051.
Abstract
\(PhI(OAc)_2\) is a common oxidant for Pd-catalyzed C−H bond functionalizations. Mechanistic hypotheses since the 1960s have suggested a Pd(II)/Pd(IV) mechanism. Here we present evidence for the relevance of bimetallic Pd(III) complexes to catalysis. A bimetallic Pd(III) acetate was isolated and can afford product by bimetallic reductive elimination.
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http://www.ncbi.nlm.nih.gov/pubmed/19899740
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http://nrs.harvard.edu/urn-3:HUL.InstRepos:8156526

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