The difunctionalization of terminal alkynes was achieved with silver fluoride (AgF) and N-bromosuccinimide (NBS) as halogen sources. The presence of the halide moiety greatly enhances the reactivity of the vinyl fluoride compounds that can probably can be transformed into various products that are difficult or even impossible to obtain via direct fluorination. Meanwhile, the monofluoro<.>alkenes were
Tunable Synthesis of Monofluoroalkenes and <i>Gem‐</i>Difluoroalkenes via Solvent‐Controlled Rhodium‐Catalyzed Arylation of 1‐Bromo‐2,2‐difluoroethylene
作者:Wen‐Yan Xu、Zhe‐Yuan Xu、Ze‐Kuan Zhang、Tian‐Jun Gong、Yao Fu
DOI:10.1002/anie.202310125
日期:2023.10.2
We report a solvent-controlled rhodium-catalyzed tunable arylation of 1-bromo-2,2-difluoroethylene, which allows the synthesis of monofluoroalkenes and gem-difluoroalkenes from readily available feedstocks. This study provides a useful strategy for the divergent synthesis of fluorine-containing scaffolds and sheds light on the importance of solvent selection in catalytic reactions.