Bromopentafluorobenzene is an organofluorine compound with the formula C₆F₅Br. It is a colorless liquid that is used to prepare pentafluophenyl compounds. These syntheses typically proceed via the intermediacy of C₆F₅Li or the

Grignard reagent A Grignard reagent or Grignard compound is a chemical compound with the general formula , where X is a halogen and R is an organic group, normally an alkyl or aryl. Two typical examples are methylmagnesium chloride and phenylmagnesium bromide ...

. Illustrative is preparation of

tris(pentafluorophenyl)borane Tris(pentafluorophenyl)borane, sometimes referred to as "BCF", is the chemical compound . It is a white, volatile solid. The molecule consists of three pentafluorophenyl groups attached in a "paddle-wheel" manner to a central boron atom; the c ...

: :3 C₆F₅MgBr + BCl₃ → (C₆F₅)₃B + 3 MgBrCl Other derivatives include LiB(C₆F₅)₄, uC₆F₅sub>4, and Ni(C₆F₅)₂(dioxane)₂.{{cite journal, authors=Sanchez, G.; Momblona, F.; Sanchez, M.; Perez, J.; Lopez, G.; Casabo, J.; Molins, E.; Miravitlles, C., title=Synthesis of Homo- and Heterobimetallic Complexes Containing the Ni(C6F5)2 Moiety. Crystal Structure of C₆F₅)₂Ni(μ-SPh)₂Pd(dppe)journal=Eur. J. Inorg. Chem. , year=1998, volume=1998 , issue=8 , pages=1199–1204, doi=10.1002/(SICI)1099-0682(199808)1998:8<1199::AID-EJIC1199>3.0.CO;2-K

References

Pentafluorophenyl compounds Perfluorinated compounds