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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%

Codice CAS
630-25-1
Sinonimi
1,2-Dibromo-1,1,2,2-tetrachloroethane
sym-Dibromotetrachloroethane

Dimensioni Prezzo ($) Quantità Disponibilità
25g 31,02
100g 88,37
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1,2-Dibromotetrachloroethane, 97%

MDL
MFCD00000780
EINECS
211-136-7

Proprietà chimiche

Formula
BrCCl2CCl2Br
Peso formula
325.65
Punto di fusione
ca 220°(dec.)
Densità
2.71
Solubilità
Insoluble in water.

Applicazioni

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).

Note

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

Letteratura

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.

Rischio GHS e dichiarazioni precauzionali

Dichiarazioni di rischio (UE): H315-H319-H335

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

Dichiarazioni precauzionali: P261-P280-P305+P351+P338-P304+P340-P362-P312-P321-P405-P403+P233-P501a

Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/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. Take off contaminated clothing and wash before reuse. Call a POISON CENTER or doctor/physician if you feel unwell. Specific treatment (see label). Store locked up. Store in a well-ventilated place. Keep container tightly closed. Dispose of contents/container in accordance with local/regional/national/international regulations.

Altri riferimenti

Beilstein
1699471
Codice tariffe armonizzato
2903.78
TSCA
No
RTECS
KH9366000

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