Nickel(0)-Mediated Transformation of Tetrafluoroethylene and Vinylarenes into Fluorinated Cyclobutyl Compounds

In the presence of Ni-0/PCy3, styrene was found to participate in oxidative cyclization with tetrafluoroethylene, thus leading to the corresponding nickelacycle with a unique (3)--benzyl structure. In addition, the flexibility of the coordination mode in the (3)-benzyl moiety allowed the partially fluorinated nickelacycle to undergo unprecedented amine-induced -fluorine elimination, thus leading to the construction of a fluorinated cyclobutyl skeleton.