Additive-Controlled Switchable Divergent Fluorination/Chlorination of Bicyclic Azaamides via Palladium Catalysis
Abstract
A silver-controlled switchable halogenation of bicyclic azaamides via palladium catalysis has been developed, exhibiting broad functional group tolerance. The switchable divergent reactivity between fluorination and chlorination is dependent on the additive. The presence of Ag 2 CO 3 promotes fluorination through activation of an electrophilic fluorinating agent, whereas its absence selectively favors chlorination via activation of the DCE solvent as a chlorine source. Comprehensive experimental and mechanistic investigations elucidate the reaction pathway and reveal the key factors governing this switchable divergent outcome.
Fields of Study & Subjects
Fluorine in Organic Chemistry
Catalytic C–H Functionalization Methods
Catalytic Cross-Coupling Reactions
Publication details
- Journal / source
- The Journal of Organic Chemistry
- Publisher
- American Chemical Society (ACS)
- Volume
- 91
- Issue
- 8
- Pages
- 3170–3179
- Publication date
- 12 February 2026
- Language
- EN