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ChemComm
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COMMUNICATION
Journal Name
D. Leow, G. Li, T. S. Mei and J. -Q. Yu NaDtuOrIe: ,102.0101329,/4D806C,C501288;5(1bG)
S. Lee, H. Lee and K. L. Tan J. Am. Chem. Soc., 2013, 135, 18778;
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Commun., 2016, 7, 10443; (e) U. Dutta, A. Modak, B. Bhaskarao,
M. Bera, S. Bag, A. Mondal, D. W. Lupton, R. B. Sunoj and D. Maiti
phenoxypyridine results in the formation of meta-nitrated
product 2i along with the regeneration of the active catalyst.
We have developed a highly regioselective ruthenium
catalyzed meta-C‒H nitration of 2-phenoxypyridine which after
removal of directing group results in the meta-nitration of
phenols. Mechanistic studies indicate the involvement of a
radical intermediate and the protocol supposedly follows the
formation of a six-membered metallacycle intermediate. This
methodology in part overcomes an existing limitation of
classical organic chemistry by executing meta-nitration of
phenols selectively over the more favourable ortho and para
positon of phenols.
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Conflicts of interest
There are no conflicts to declare.
Notes and references
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4 | Chem. Commun., 2020, 00, 1-3
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