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Cine-Substitutions at Five-Membered Hetarenes Enabled by Sulfonium Salts

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journal contribution
posted on 08.07.2020, 22:03 by Florian Berger, Eva Maria Alvarez, Nils Frank, Kostiantyn Bohdan, Mykhailo Kondratiuk, Luca Torkowski, Pascal S. Engl, Joana Barletta, Tobias Ritter
We report a nucleophilic substitution reaction of five-membered hetarylsulfonium salts that results in a change of the substitution pattern on the arene. The products of these cine-substitutions are hard to access synthetically otherwise. The sulfonium salts that serve as starting materials are generated by a highly site-selective C–H functionalization reaction.