221775
Copper(II) bromide
99%
Synonym(s):
brominating agent, Cupric bromide
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About This Item
Linear Formula:
CuBr2
CAS Number:
Molecular Weight:
223.35
EC Number:
MDL number:
UNSPSC Code:
12161600
eCl@ss:
38150112
PubChem Substance ID:
NACRES:
NA.22
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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
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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:
Reductive homocoupling of α-bromo- α- chlorocarboxylates to dimethyl α, α′ dichlorosuccinate derivatives in presence of CuBr/LiOCH3 in methanol has been reported.
- 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 Statements
Precautionary Statements
Hazard Classifications
Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Corr. 1B
Storage Class Code
8A - Combustible corrosive hazardous materials
WGK
WGK 3
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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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
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The functionalization and application of nano-objects generated using a polymerization induced self-assembly (PISA) procedure is becoming a focus in recent years. In this contribution, using ethanol as solvent, poly(oligo(ethylene oxide) methyl ether methacrylate) (POEOMA) as macro-initiator/stabilizer, and 2-(perfluorohexyl)ethyl methacrylate (PFHEMA)
Shengqing Ye et al.
Chemical communications (Cambridge, England), (36)(36), 5406-5408 (2009-09-03)
Palladium-catalyzed tandem reactions of 2-alkenylphenyl-acetylenes with CuCl2 or CuBr2 afforded 3-chloro- or 3-bromo-1-methyleneindenes in good yields; these compounds could be further elaborated via palladium-catalyzed coupling reactions.
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