221775

Copper(II) bromide

99%

• Synonyme(s) : brominating agent, Cupric bromide
• Formule linéaire : CuBr₂
• CAS Number: 7789-45-9
• Poids moléculaire : 223.35
• Numéro CE : 232-167-2
• Numéro MDL: MFCD00010970
• Code UNSPSC : 12161600
• eCl@ss : 38150112
• ID de substance PubChem : 24853260
• Nomenclature NACRES : NA.22

Propriétés

• Niveau de qualité: 200
• Essai: 99%
• Forme: solid
• Pertinence de la réaction: core: copper; reagent type: catalyst
• Pf: 498 °C (lit.)
• Densité: 4.77 g/mL at 25 °C (lit.)
• Chaîne SMILES: Br[Cu]Br
• InChI: 1S/2BrH.Cu/h2*1H;/q;;+2/p-2
• Clé InChI: QTMDXZNDVAMKGV-UHFFFAOYSA-L

Description

Description générale

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.

Informations sur la sécurité

• Pictogrammes: GHS05,GHS07,GHS09
• Mention d'avertissement: Danger
• Mentions de danger: H302,H314,H410
• Conseils de prudence: P260 - P273 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338
• Classification des risques: Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Corr. 1B
• Code de la classe de stockage: 8A - Combustible corrosive hazardous materials
• Classe de danger pour l'eau (WGK): WGK 3
• Équipement de protection individuelle: Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges