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Merck
CN

221775

Copper(II) bromide

99%, solid

Synonym(s):

brominating agent, Cupric bromide

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About This Item

Linear Formula:
CuBr2
CAS Number:
Molecular Weight:
223.35
UNSPSC Code:
12161600
eCl@ss:
38150112
PubChem Substance ID:
NACRES:
NA.22
EC Number:
232-167-2
MDL number:
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Product Name

Copper(II) bromide, 99%

Quality Level

assay

99%

form

solid

reaction suitability

core: copper, reagent type: catalyst

mp

498 °C (lit.)

density

4.77 g/mL at 25 °C (lit.)

SMILES string

Br[Cu]Br

InChI

1S/2BrH.Cu/h2*1H;/q;;+2/p-2

InChI key

QTMDXZNDVAMKGV-UHFFFAOYSA-L

General description

Cuprous bromide may be prepared by the reduction of cupric bromide or CuSO4-NaBr. In the molten state, it is grayish brown /greenish brown in color.

Application

Some reported applications of copper bromide are:
  • catalyst in cross coupling reactions.
  • co-catalyst in Sonogashira coupling.
  • Lewis acid in enantioselective addition of alkynes.
  • reducing agent, when complexed by three molecules of pyridine initiators for the controlled polymerization of styrene, methyl acrylate and methyl methacrylate.

Reductive homocoupling of α-bromo- α- chlorocarboxylates to dimethyl α, α′ dichlorosuccinate derivatives in presence of CuBr/LiOCH3 in methanol has been reported.



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Danger

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Corr. 1B

Storage Class

8A - Combustible corrosive hazardous materials

wgk

WGK 3

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges



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Protocols

ARGET ATRP procedure facilitates PMMA polymer brush growth with surface cleaning and initiator monolayer deposition.


Jian Wang et al.
Macromolecular rapid communications, 40(2), e1800332-e1800332 (2018-06-28)
Polymerization-induced self-assembly (PISA) and in situ crosslinking of the formed nanoparticles are successfully realized by activators regenerated by electron-transfer atom transfer radical polymerization (ARGET ATRP) of glycidyl methacrylate (GMA) or a mixture of GMA/benzyl methacrylate (BnMA) monomers in ethanol. Poly(oligo(ethylene
Denissova I and Barriault L
Handbook of Reagents for Organic Synthesis null
Synthesis, 1535-1535 (2007)



Global Trade Item Number

SKUGTIN
221775-500G04061838777539
221775-100G04061838777522
221775-5G04061838777546