247952
2-Bromo-1,4-difluorobenzene
98%
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About This Item
Linear Formula:
BrC6H3F2
CAS Number:
Molecular Weight:
192.99
NACRES:
NA.22
PubChem Substance ID:
UNSPSC Code:
12352100
EC Number:
206-920-0
MDL number:
Assay:
98%
Form:
liquid
InChI key
XCRCSPKQEDMVBO-UHFFFAOYSA-N
InChI
1S/C6H3BrF2/c7-5-3-4(8)1-2-6(5)9/h1-3H
SMILES string
Fc1ccc(F)c(Br)c1
assay
98%
form
liquid
refractive index
n20/D 1.508 (lit.)
bp
58-59 °C/20 mmHg (lit.)
mp
−31 °C (lit.)
density
1.708 g/mL at 25 °C (lit.)
functional group
bromo, fluoro
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Application
2-Bromo-1,4-difluorobenzene has been used in the preparation of 1,4-difluoroanthraquinone, a precursor to ametantrone.
General description
Lithiation of 2-bromo-1,4-difluorobenzene in the presence of lithium diisopropylamide (LDA) in THF-hexane, butyllithium in diethyl ether-hexane and butyllithium in THF-hexane has been reported.
flash_point_f
149.0 °F - closed cup
signalword
Warning
hcodes
Hazard Classifications
Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
Storage Class
10 - Combustible liquids
wgk
WGK 3
flash_point_c
65 °C - closed cup
ppe
Eyeshields, Gloves, type ABEK (EN14387) respirator filter
Regulatory Information
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Synthesis of fluorine-substituted anthraquinones and aza-anthraquinones.
Khanapure SP, et al.
Journal of Fluorine Chemistry, 68(2), 131-134 (1994)
The lithiation of fluorinated benzenes and its dependence on solvent and temperature.
Coe PL, et al.
Journal of the Chemical Society. Perkin Transactions 1, 21, 2729-2737 (1995)
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