Institute of Chemical Research of Catalonia (ICIQ), Tarragona 43007, Spain.
J Am Chem Soc. 2013 Aug 28;135(34):12584-7. doi: 10.1021/ja407017j. Epub 2013 Aug 19.
Pentafluoroethane, C2F5H (HFC-125), is smoothly cuprated with preisolated or in situ-generated [K(DMF)][(t-BuO)2Cu] to give [K(DMF)2][(t-BuO)Cu(C2F5)] (1) in nearly quantitative yield. Complex 1 has been isolated, structurally characterized, and demonstrated to be an exceedingly versatile pentafluoroethylating reagent for a variety of substrates, including unactivated aryl bromides.
五氟乙烷,C2F5H(HFC-125),可与预分离或原位生成的[K(DMF)][(t-BuO)2Cu]平稳地进行铜化反应,以近乎定量的产率得到[K(DMF)2][(t-BuO)Cu(C2F5)](1)。该配合物已被分离、结构表征,并被证明是一种非常通用的五氟乙基化试剂,可用于各种底物,包括未活化的芳基溴化物。