Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 140, Issue 33, Pages 10412-10415Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jacs.8b05599
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Funding
- Welch Foundation [A-1907]
- Texas AM University
- NSF [NSF/CHE-1346572, NSF/DMR-1531283]
- U.S. DOE [DE-AC02-06CH11357]
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Rh-2-catalyzed C-H amination is a powerful method for nitrogenating organic molecules. While Rh-2 nitrenoids are often invoked as reactive intermediates in these reactions, the exquisite reactivity and fleeting lifetime of these species has precluded their observation. Here, we report the photogeneration of a transient Rh-2 nitrenoid that participates in C-H amination. The developed approach to Rh-2 nitrenoids, based on photochemical cleavage of N-Cl bonds in N-chloroamido ligands, has enabled characterization of a reactive Rh-2 nitrenoid by mass spectrometry and transient absorption spectroscopy. We anticipate that photogeneration of metal nitrenoids will contribute to the development of C-H amination catalysis by providing tools to directly study the structures of these critical intermediates.
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