34125
二溴二氟甲烷
≥95.0% (GC)
别名:
Carbon dibromide difluoride, Difluorodibromomethane
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关于此项目
经验公式（希尔记法）:
CBr2F2
化学文摘社编号:
分子量:
209.82
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
EC Number:
200-885-5
Beilstein/REAXYS Number:
1732515
MDL number:
Assay:
≥95.0% (GC)
Form:
liquid
InChI key
AZSZCFSOHXEJQE-UHFFFAOYSA-N
InChI
1S/CBr2F2/c2-1(3,4)5
SMILES string
FC(F)(Br)Br
vapor density
7.24 (vs air)
vapor pressure
12.79 psi ( 20 °C)
assay
≥95.0% (GC)
form
liquid
Quality Level
bp
22-23 °C (lit.)
mp
−142-−141 °C (lit.)
density
2.297 g/mL at 25 °C (lit.)
functional group
bromo, fluoro
storage temp.
2-8°C
General description
The photolysis products of dibromodifluoromethane were characterized by matrix isolation infrared and UV/Visible spectroscopy. Free radical addition of dibromodifluoromethane with fluoroolefins has been reported. Dibromodifluoromethane reacts with hydrocarbon olefins to yield 1,3-dibromo-1,1-difluoroalkene. Sulfinatodehalogenation reagent promoted addition reaction of difluorodibromomethane with alkenes, alkynes and cyclic enol ethers has been described.
Application
- Synthesis of 3‑Fluoropyrazoles via Radical-Polar Crossover Photoinduced Cyclization: This study highlights the use of dibromodifluoromethane (CF2Br2) for the synthesis of valuable difluorinated and monofluorinated compounds through a novel photoinduced cyclization process (MA Reed, ND Patil, Synfacts, 2023).
Other Notes
作为反应物与羰基化合物通过 Wittig 烯化反应转化成二氟亚甲基或氟亚甲基衍生物；二氟卡宾的前体
signalword
Warning
hcodes
Hazard Classifications
Eye Irrit. 2 - Ozone 1 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
存储类别
10 - Combustible liquids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Gloves
法规信息
监管及禁止进口产品
此项目有
Free Radical Additions Involving Fluorine Compounds. IV. The Addition of Dibromodifluoromethane to Some Fluoroolefins1.
Tarrant P, et al.
Journal of the American Chemical Society, 77(10), 2783-2787 (1955)
H.P. Fritz et al.
Zeitschrift fur Naturforschung, B: Chemical Sciences, 86, 1375-1375 (1981)
S. Hayaski et al.
Chemistry Letters (Jpn), 983-983 (1979)
Free Radical Additions Involving Fluorine Compounds. I. The Addition of Dibromodifluoromethane to Hydrocarbon Olefins.
Tarrant P and Lovelace AM.
Journal of the American Chemical Society, 76(13), 3466-3468 (1954)
Addition reactions of dibromodifluoromethane promoted by sulfinatodehalogenation reagents.
Wu F-H, et al.
Journal of Fluorine Chemistry, 80(2), 91-94 (1996)
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