1-Bromo-2,5-difluorobenzene
- Product Name
- 1-Bromo-2,5-difluorobenzene
- CAS No.
- 399-94-0
- Chemical Name
- 1-Bromo-2,5-difluorobenzene
- Synonyms
- 2-BROMO-1,4-DIFLUOROBENZENE;NSC 10250;2-Bromo-1,4-difL;1-Bromo-2,5-difluoro;2,5-DIFLUOROBROMOBENZENE;2-Brom-1,4-difluorbenzol;1,4-Difluoro-2-bromobenzene;1-BROMO-2,5-DIFLUOROBENZENE;2,5-Difluorobromobenzene 98%;1-Bromo-2,5-difluorobenzene98%
- CBNumber
- CB2701983
- Molecular Formula
- C6H3BrF2
- Formula Weight
- 192.99
- MOL File
- 399-94-0.mol
1-Bromo-2,5-difluorobenzene Property
- Melting point:
- −31 °C(lit.)
- Boiling point:
- 58-59 °C20 mm Hg(lit.)
- Density
- 1.708 g/mL at 25 °C(lit.)
- refractive index
- n20/D 1.508(lit.)
- Flash point:
- 149 °F
- storage temp.
- Sealed in dry,Room Temperature
- form
- clear liquid
- Specific Gravity
- 1.708
- color
- Colorless to Light yellow to Light orange
- Water Solubility
- Insoluble
- BRN
- 1680893
- InChI
- InChI=1S/C6H3BrF2/c7-5-3-4(8)1-2-6(5)9/h1-3H
- InChIKey
- XCRCSPKQEDMVBO-UHFFFAOYSA-N
- SMILES
- C1(F)=CC=C(F)C=C1Br
- CAS DataBase Reference
- 399-94-0(CAS DataBase Reference)
- NIST Chemistry Reference
- Benzene, 2-bromo-1,4-difluoro-(399-94-0)
Safety
- Hazard Codes
- Xi,F,Xn
- Risk Statements
- 36/37/38
- Safety Statements
- 26-36/37/39-2637/39-37/39
- RIDADR
- UN 2922
- WGK Germany
- 3
- Hazard Note
- Flammable
- HazardClass
- IRRITANT, FLAMMABLE
- HS Code
- 29039990
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P271Use only outdoors or in a well-ventilated area.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- 247952
- Product name
- 2-Bromo-1,4-difluorobenzene
- Purity
- 98%
- Packaging
- 5g
- Price
- $45.1
- Updated
- 2023/06/20
- Product number
- B1166
- Product name
- 1-Bromo-2,5-difluorobenzene
- Purity
- >98.0%(GC)
- Packaging
- 5g
- Price
- $37
- Updated
- 2025/07/31
- Product number
- B1166
- Product name
- 1-Bromo-2,5-difluorobenzene
- Purity
- >98.0%(GC)
- Packaging
- 25g
- Price
- $68
- Updated
- 2025/07/31
- Product number
- B689648
- Product name
- 2-Bromo-1,4-difluorobenzene
- Packaging
- 2.5g
- Price
- $65
- Updated
- 2021/12/16
- Product number
- J51055
- Product name
- 2,5-Difluorobromobenzene
- Packaging
- 500g
- Price
- $180
- Updated
- 2021/12/16
1-Bromo-2,5-difluorobenzene Chemical Properties,Usage,Production
Chemical Properties
CLEAR COLOURLESS LIQUID
Uses
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.
Synthesis
108-86-1
1072-85-1
399-94-0
1073-06-9
348-61-8
460-00-4
GENERAL STEPS: In a FEP or PFA reactor equipped with a PTFE-lined magnetic stir bar and connected to a gas scrubber bottle, substituted benzene (0.95-1.10 mmol), 1,1,1,3,3-pentafluorobutane (2 mL per mL of C6H5R), and BF3-Et2O (1.3-1.5 mmol/mmol C6H5R) were added. The mixture was stirred at 0-5 °C (ice bath) for 10-15 min, followed by batchwise addition of XeF2 (1.2-1.3 mmol/mmol C6H5R). After each addition, the mixture was stirred at 22-25 °C for 3-5 min and cooled to 0-5 °C again. After the addition was completed, the dark-colored solution was continued to be stirred at 22-25 °C for 15-30 min. Upon completion of the reaction, the reaction was quenched by the addition of 10% aqueous KHCO3, the upper organic layer was separated and filtered through a short column packed with silica gel (40-60 μm) and finally dried with magnesium sulfate. The solution was analyzed by 19F NMR and GC/MS. The major products are listed in the table and the others are as follows (GC/MS data provided).
References
[1] Russian Journal of Organic Chemistry, 2016, vol. 52, # 10, p. 1400 - 1407
[2] Zh. Org. Khim., 2016, vol. 52, # 10, p. 1412 - 1419,8
1-Bromo-2,5-difluorobenzene Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from 1-Bromo-2,5-difluorobenzene manufacturers
- Product
- 1-Bromo-2,5-difluorobenzene 399-94-0
- Price
- US $0.00/KG
- Min. Order
- 25KG
- Purity
- 98%min
- Supply Ability
- 30tons/month
- Release date
- 2023-02-07
- Product
- 1-Bromo-2,5-difluorobenzene 399-94-0
- Price
- US $30.00-10.00/KG
- Min. Order
- 50KG
- Purity
- 99%
- Supply Ability
- 500000kg
- Release date
- 2024-11-04
- Product
- 1-Bromo-2,5-difluorobenzene 399-94-0
- Price
- US $100.00-1.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- g-kg-tons, free sample is available
- Release date
- 2023-12-26