Palladium-Catalyzed Denitrative α-Arylation of Heteroarenes with Nitroarenes via C-H and C-NO Bond Activations.

Org Lett

School of Chemistry and Chemical Engineering, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, Guangxi University, Nanning 530004, Guangxi, P. R. China.

Published: September 2024

A general approach for the α-arylation of heteroarenes with nitroarenes via denitrative coupling is reported for the first time. Various heteroarenes, including derivatives of furan, benzofuran, pyrrole, indole, thiophene, and benzothiophene, can be arylated at the α-position in moderate to good yields. Mechanistic studies demonstrate that the reaction proceeds via a CMD pathway, with C-H bond activation as the rate-determining step. Furthermore, the scalability and applicability in the synthesis of a drug molecule exemplify the utility of this protocol.

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http://dx.doi.org/10.1021/acs.orglett.4c02340DOI Listing

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