Cobalt Fluorocarbenes: Cycloaddition Reactions with Tetrafluoroethylene and Reactivity of the Perfluorometallacyclic Products
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Cobalt fluorocarbene complexes CpCo(CFRF)(PPh2Me) (Cp = η5-C5H5, RF = F or CF3) react with tetrafluoroethylene to give the metallacyclobutanes CpCo(κ2-CFRFCF2CF2-)(PPh2Me) in the first examples of cycloaddition reactions between perfluoroalkenes and metal perfluorocarbenes. The metallacyclic products undergo a variety of reactions upon activation of the C–F bonds, including Brønsted acid-catalyzed C–F/Co–C scrambling. Implications for metal-catalyzed metathesis and polymerization of perfluoroalkenes are discussed.
创建时间：
2016-02-18
