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34125

Dibromodifluoromethane

≥95.0% (GC)

Synonym(s):

Carbon dibromide difluoride, Difluorodibromomethane

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About This Item

Empirical Formula (Hill Notation):
CBr2F2
CAS Number:
75-61-6
Molecular Weight:
209.82
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
57649084
EC Number:
200-885-5
Beilstein/REAXYS Number:
1732515
MDL number:
MFCD00000367
Assay:
≥95.0% (GC)
Form:
liquid
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vapor density

7.24 (vs air)

Quality Segment

100

vapor pressure

12.79 psi ( 20 °C)

assay

≥95.0% (GC)

form

liquid

refractive index

n20/D 1.398

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

SMILES string

FC(F)(Br)Br

InChI

1S/CBr2F2/c2-1(3,4)5

InChI key

AZSZCFSOHXEJQE-UHFFFAOYSA-N

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

Reagent for the Wittig olefination of carbonyl compounds to difluoromethylene and fluoromethylene derivatives; Precursor of difluorocarbene

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Ozone 1 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

10 - Combustible liquids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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