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630-25-1 - 1,2-Dibromotetrachloroethane, 97% - 1,2-Dibromo-1,1,2,2-tetrachloroethane - sym-Dibromotetrachloroethane - B20276 - Alfa Aesar

B20276 1,2-Dibromotetrachloroethane, 97%

CAS Number
630-25-1
Synonyms
1,2-Dibromo-1,1,2,2-tetrachloroethane
sym-Dibromotetrachloroethane

Size Price ($) Quantity Availability
25g 32.30
100g 88.80
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1,2-Dibromotetrachloroethane, 97%

MDL
MFCD00000780
EINECS
211-136-7

Chemical Properties

Formula
BrCCl2CCl2Br
Formula Weight
325.65
Melting point
ca 220°(dec.)
Density
2.71
Solubility
Insoluble in water.

Applications

1,2-dibromotetrachloroethane is used as a fire-proofing agent. It is actively involved in the conversion of sulfones to alkenes by Ramberg-Backlund rearrangement. It is an effective replacement for ozone depleting solvents like dibromodifluoromethane and tetrabromodifluoroethane. It is also utilized as a brominating reagent. In analytical chemistry, it is used in quantitative determination of perhalogenated compounds by high-performance liquid chromatography (HPLC).

Notes

Keep container tightly closed in a dry and well-ventilated place. Incompatible with strong oxidizing agents.

Literature References

Reagent for the free-radical initiated allylic bromination of alkenes: Chem. Ind. (London), 1954 (1963).

Source of bromine, for example in reactions of aryllithiums to give the regiospecifically bromo substituted derivatives: Tetrahedron Lett., 36, 881 (1995).

/n

Jung, H. S.; Hwang, G. S.; Lee, S. I.; Ryu, D. H. Total Synthsis of (+)-Ambuic Acid: alpha-Bromination with 1, 2-Dibromotetrachloroethane. J. Org. Chem. 2012, 77 (5), 2513-2518.

Söderman, S. C.; Schwan, A. L. 1,2-Dibromotetrachloroethane: An Ozone-Friendly Reagent for the in Situ Ramberg-Bäcklund Rearrangement and Its Use in the Formal Synthesis of E-Resveratrol. J. Org. Chem. 2012, 77 (23), 10978-10984.

GHS Hazard and Precautionary Statements

Hazard Statements: H315-H319-H335

Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Precautionary Statements: P261-P280a-P305+P351+P338-P304+P340-P405-P501a

Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves and eye/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Other References

Beilstein
1699471
Harmonized Tariff Code
2903.78
TSCA
No
RTECS
KH9366000

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