Ipso Nitration of Aryl Boronic Acids Using Fuming Nitric Acid

The ipso nitration of aryl boronic acid derivatives has been developed using fuming nitric acid as the nitrating agent. This facile procedure provides efficient and chemoselective access to a variety of aromatic nitro compounds. While several activating agents and nitro sources have been reported in...

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Bibliographic Details
Published in:Journal of organic chemistry 2022-02, Vol.87 (4), p.1977-1985
Main Authors: Murray, James I, Silva Elipe, Maria V, Baucom, Kyle D, Brown, Derek B, Quasdorf, Kyle, Caille, Seb
Format: Article
Language:English
Subjects:
Boronic Acids
Nitrates
Nitric Acid
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Summary:The ipso nitration of aryl boronic acid derivatives has been developed using fuming nitric acid as the nitrating agent. This facile procedure provides efficient and chemoselective access to a variety of aromatic nitro compounds. While several activating agents and nitro sources have been reported in the literature for this synthetically useful transformation, this report demonstrates that these processes likely generate a common active reagent, anhydrous HNO3. Kinetic and mechanistic studies have revealed that the reaction order in HNO3 is >2 and indicate that the •NO2 radical is the active species.
ISSN:0022-3263
1520-6904
DOI:10.1021/acs.joc.1c00886