Diverse reactivity of carbenes and silylenes towards fluoropyridines
2021
Kundu, Gargi | Ajithkumar, V. S. | Bisai, Milan Kumar | Tothadi, Srinu | Das, Tamal | Vanka, Kumar | Sen, Sakya S.
The reaction of IDipp with C₅F₅N led to functionalization of all three carbon atoms of the imidazole ring with HF₂⁻ as the counter-anion (1). Reactivity with 2,3,5,6-tetrafluoropyridine gives only C–F bond activation leaving C–H bonds intact (5b). The reaction of SIDipp with C₅F₅N in the presence of BF₃ afforded the ring cleavage product (3). Analogous reactions with silylene led to oxidative addition at the Si(ii) center.
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