Bromopentafluorobenzene

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.^[1] Illustrative is preparation of tris(pentafluorophenyl)borane:^[2]

3 C₆F₅MgBr + BCl₃ → (C₆F₅)₃B + 3 MgBrCl

Quick facts Names, Identifiers ...

Bromopentafluorobenzene

Names
Preferred IUPAC name Bromopenta(fluoro)benzene
Other names Bromoperfluorobenzene
Identifiers
CAS Number	344-04-7
3D model (JSmol)	Interactive image
ChEMBL	ChEMBL1231233
ChemSpider	21168727
ECHA InfoCard	100.005.863
EC Number	206-449-0
PubChem CID	9578
UNII	S88219080S
CompTox Dashboard (EPA)	DTXSID3047136
InChI InChI=1S/C6BrF5/c7-1-2(8)4(10)6(12)5(11)3(1)9 Key: XEKTVXADUPBFOA-UHFFFAOYSA-N
SMILES C1(=C(C(=C(C(=C1F)F)Br)F)F)F
Properties
Chemical formula	C6BrF5
Molar mass	246.962 g·mol−1
Appearance	colorless liquid
Density	1.9503 g/cm3
Melting point	−31 °C (−24 °F; 242 K)
Boiling point	137 °C (279 °F; 410 K)
Solubility in water	low
Hazards
GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H315, H319, H335
Precautionary statements	P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

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Other derivatives include LiB(C₆F₅)₄,^[3] [CuC₆F₅]₄,^[1] and Ni(C₆F₅)₂(dioxane)₂.^[4]