Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 142, Issue 27, Pages 11641-11646Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jacs.0c04937
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Funding
- National Science Foundation [CHE-1800110]
- NSF-MRI award [CHE-1229400]
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A homogeneous rhodium-indium catalyst hydrodefluorinates substrates bearing strong aryl C-F bonds, including difluoro- and fluorobenzene, using 1 atm of H-2, alkoxide bases, and moderate temperatures (70-90 degrees C). Characterization of catalytic intermediates establishes a formal Rh-I/Rh-I redox cycle. The Rh -> In interaction is proposed to enable catalysis by stabilizing the reactive Rh--(I) species, which is responsible for cleaving the Ar-F bond and is ultimately regenerated using H-2 and base.
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