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221775

Sigma-Aldrich

Copper(II) bromide

99%

Sinónimos:

brominating agent, Cupric bromide

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About This Item

Fórmula lineal:
CuBr2
Número de CAS:
7789-45-9
Peso molecular:
223.35
EC Number:
232-167-2
MDL number:
MFCD00010970
UNSPSC Code:
12161600
eCl@ss:
38150112
PubChem Substance ID:
24853260
NACRES:
NA.22

Quality Level

200

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:
  • 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.

related product

Referencia del producto
Descripción
Precios

909424

Cu(OTs)2, ≥95%

signalword

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_germany

WGK 3

ppe

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

Certificados de análisis (COA)

Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»

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Synthesis, 1535-1535 (2007)
Denissova I and Barriault L
Handbook of Reagents for Organic Synthesis null
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
Boyang Shi et al.
Macromolecular rapid communications, 40(24), e1900547-e1900547 (2019-11-30)
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)
Yu Wang
Polymers, 11(8) (2019-07-31)
Atom transfer radical polymerization (ATRP) of methyl acrylate (MA) was carried out by continuous feeding of Cu(I) activators. Typically, the solvent, the monomer, the initiator, and the CuBr2/Me6TREN deactivator are placed in a Schlenk flask (Me6TREN: tris[2-(dimethylamino)ethyl]amine), while the CuBr/Me6TREN
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Protocolos

ARGET ATRP: Procedure for PMMA Polymer Brush Growth

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

ARGET ATRP: Procedure for PMMA Polymer Brush Growth

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

ARGET ATRP: Procedure for PMMA Polymer Brush Growth

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

ARGET ATRP: Procedure for PMMA Polymer Brush Growth

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

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