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Updated: Jun 3, 2026
![[(DPEPhos)(bcp)Cu]PF6: A General and Broadly Applicable Copper-Based Photoredox Catalyst](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F59739.jpg&w=3840&q=50)
[(DPEPhos)(bcp)Cu]PF6: A General and Broadly Applicable Copper-Based Photoredox Catalyst
Published on: May 21, 2019
Benzoquinone-promoted reaction of O2 with a Pd(II)-hydride
Nattawan Decharin1, Shannon S Stahl
1Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States.
Abstract:
Benzoquinone (BQ) and O(2) are among the most common stoichiometric oxidants in Pd-catalyzed oxidation reactions. The present study provides rare insights into mechanistic differences between BQ and O(2) in their reactivity with a well-defined Pd-hydride complex, Pd(IMes)(2)(H)(O(2)CPh) (1). BQ promotes the reductive elimination of PhCO(2)H from 1 and catalyzes the formation of a Pd(II)-OOH complex when this reaction is carried out under aerobic conditions. These results have important implications for Pd-catalyzed oxidation reactions.
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