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221775

Sigma-Aldrich

Copper(II) bromide

99%

Sinonimo/i:

brominating agent, Cupric bromide

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About This Item

Formula condensata:
CuBr2
Numero CAS:
7789-45-9
Peso molecolare:
223.35
Numero CE:
232-167-2
Numero MDL:
MFCD00010970
Codice UNSPSC:
12161600
eCl@ss:
38150112
ID PubChem:
24853260
NACRES:
NA.22

Saggio

99%

Forma fisica

solid

Impiego in reazioni chimiche

core: copper
reagent type: catalyst

Punto di fusione

498 °C (lit.)

Densità

4.77 g/mL at 25 °C (lit.)

Stringa SMILE

Br[Cu]Br

InChI

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

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Descrizione generale

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.

Applicazioni

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.

Prodotti correlati

N° Catalogo
Descrizione
Determinazione del prezzo

909424

Cu(OTs)2, ≥95%

Avvertenze

Danger

Indicazioni di pericolo

H302,H314,H410

Classi di pericolo

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

Codice della classe di stoccaggio

8A - Combustible corrosive hazardous materials

Classe di pericolosità dell'acqua (WGK)

WGK 3

Dispositivi di protezione individuale

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

Certificati d'analisi (COA)

Cerca il Certificati d'analisi (COA) digitando il numero di lotto/batch corrispondente. I numeri di lotto o di batch sono stampati sull'etichetta dei prodotti dopo la parola ‘Lotto’ 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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Protocolli

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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