Meta-Dimethylation of Arenes via Catellani Reaction from Aryl Thianthrenium 
Salts

Mrozowicz, Michał; Chatterjee, Sagnik; Mermigki, Markella Aliki; Pantazis, Dimitrios A.; Ritter, Tobias

doi:10.1002/anie.202419472

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Meta-Dimethylation of Arenes via Catellani Reaction from Aryl Thianthrenium Salts

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Mrozowicz, Michał
Research Department Ritter, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

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Chatterjee, Sagnik
Research Department Ritter, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

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Mermigki, Markella Aliki
Research Group Pantazis, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

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Pantazis, Dimitrios A.
Research Group Pantazis, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

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Ritter, Tobias
Research Department Ritter, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

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Citation

Mrozowicz, M., Chatterjee, S., Mermigki, M. A., Pantazis, D. A., & Ritter, T. (2025). Meta-Dimethylation of Arenes via Catellani Reaction from Aryl Thianthrenium Salts. Angewandte Chemie International Edition, 64(5): e202419472. doi:10.1002/anie.202419472.

Cite as: https://hdl.handle.net/21.11116/0000-0010-433E-E

Abstract

Here we report the reaction of aryl thianthrenium salts that allows selective functionalization of the meta position of arenes. The combination of a site-selective thianthrenation with a Catellani reaction provides access to 3,5-dimethylated arenes. The developed reaction is complementary to the previously discovered reductive ipso-alkylation of aryl thianthrenium salts and extends the possibilities for late-stage methylation of arenes with a single aryl thianthrenium salt.