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Directed Palladium Catalyzed C-H (Ethoxycarbonyl)difluoromethylthiolation Reactions.


ABSTRACT: The unprecedented Pd-catalyzed (ethoxycarbonyl)difluoromethylthiolation reaction of various unsaturated derivatives was studied. In the presence of the (ethoxycarbonyl)difluoromethylsulfenamide reagent I and under mild reaction conditions (60 °C), both 2-(hetero)aryl and 2-(α-aryl-vinyl)pyridine derivatives were smoothly functionalized with this methodology (37 examples, up to 87 % yield). Moreover, the synthetic interest of this fluorinated moiety was further showcased by its conversion into various original fluorinated residues. Finally, a plausible mechanism for this transformation was suggested.

SUBMITTER: Doche F 

PROVIDER: S-EPMC9826264 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature

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Directed Palladium Catalyzed C-H (Ethoxycarbonyl)difluoromethylthiolation Reactions.

Doche Floriane F   Escudero Julien J   Petit-Cancelier Fabien F   Xiong Heng-Ying HY   Couve-Bonnaire Samuel S   Audisio Davide D   Poisson Thomas T   Besset Tatiana T  

Chemistry (Weinheim an der Bergstrasse, Germany) 20220913 64


The unprecedented Pd-catalyzed (ethoxycarbonyl)difluoromethylthiolation reaction of various unsaturated derivatives was studied. In the presence of the (ethoxycarbonyl)difluoromethylsulfenamide reagent I and under mild reaction conditions (60 °C), both 2-(hetero)aryl and 2-(α-aryl-vinyl)pyridine derivatives were smoothly functionalized with this methodology (37 examples, up to 87 % yield). Moreover, the synthetic interest of this fluorinated moiety was further showcased by its conversion into va  ...[more]

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