Cupric bromide

Base Information

• Chemical Name: Cupric bromide
• CAS No.: 7789-45-9
• Molecular Formula: Br2Cu
• Molecular Weight: 223.354
• Hs Code.: 2827 59 00
• European Community (EC) Number: 232-167-2
• DSSTox Substance ID: DTXSID7064863
• Wikipedia: Copper(II) bromide
• Wikidata: Q420370
• Mol file: 7789-45-9.mol

Synonyms:Copperdibromide;Copper(II) bromide;Copper bromide (CuBr2);

Chemical Property of Cupric bromide

Chemical Property:

• Appearance/Colour: black crystalline powder
• Melting Point: 498 °C(lit.)
• Boiling Point: 900ºC
• Flash Point: 900°C
• PSA: 0.00000
• Density: 4.77 g/mL at 25 °C(lit.)
• LogP: 1.68870
• Storage Temp.: Store below +30°C.
• Sensitive.: Hygroscopic
• Solubility.: 1200g/l
• Water Solubility.: soluble
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 0
• Rotatable Bond Count: 0
• Exact Mass: 222.76422
• Heavy Atom Count: 3
• Complexity: 2.8

Purity/Quality:

99% ^*data from raw suppliers

Copper(II) bromide ^*data from reagent suppliers

Safty Information:

• Pictogram(s): C,Xi
• Hazard Codes: C,Xi
• Statements: 22-34-36/37/38
• Safety Statements: 26-36/37/39-45-24/25

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Chemical Classes: Metals -> Metals, Inorganic Compounds
• Canonical SMILES: [Cu](Br)Br
• Description: Cupric bromide is a kind of inorganic compound obtained through the reaction between copper oxide and hydrobromic acid. It can be used in laser, generating pulse yellow and green light. The cupric bromide laser is an important technology used in dermatology for the treatment of pigmented lesion and vascular lesions. It can also be used in living radical polymerization and as an intensifier in photographic processing. It is also a brominating agent used in organic synthesis. In addition, it is a kind of highly efficient catalyst in the direct alkynylation of azoles.
• Uses: Copper(II) bromide is used as a catalyst in organic reactions, as an intensifier in photography, and as a brominating agent. As intensifier in photography; as brominating agent in organic synthesis; as humidity indicator; as wood preservative; in solid-electrolyte battery; as stabilizer for acetylated polyformaldehyde. Copper(II) bromide is used in photographic processing as an intensifier and as a brominating agent in organic synthesis. It is also used in the coupling of o-iodophenols and aryl acetylenes avoiding the use of palladium. It finds application in the preparation of NK1/NK2 receptor antagonists used in the regulation of tachykinin. 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.

Technology Process of Cupric bromide

There total 42 articles about Cupric bromide which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield:

hydrogen bromo cuprate(II) → hydrogen bromide (10035-10-6,12258-64-9) + copper(ll) bromide (7789-45-9)

Guidance literature:

In neat (no solvent); decompn. at ambient temp.;;

Reference yield:

hydrogen bromide (10035-10-6,12258-64-9) + copper(II) oxide → copper(I) bromide (7787-70-4) + copper(ll) bromide (7789-45-9)

Guidance literature:

With Graphite; at 1000 - 1400 ℃; for 0.25h; Microwave irradiation; Inert atmosphere;

DOI:10.1021/ic401914f

Reference yield:

bromine (7726-95-6) → copper(I) bromide (7787-70-4) + copper(ll) bromide (7789-45-9)

Guidance literature:

In neat (no solvent); combustion of Cu with Br2, only small amounts of CuBr2;;

upstream raw materials:

bromine

copper(I) bromide

copper

potassium bromide

Downstream raw materials:

2-bromoacetyl-4-cyclohexylphenol

2,6-dibromoanthraquinone

2-bromo-1-(5-chloro-2-hydroxyphenyl)-1-ethanone

3-bromodibenzofuran

Refernces

A hypervalent pentacoordinate boron compound with an N-B-N three-center four-electron bond

10.1021/jo1024656

The research focuses on the synthesis and characterization of a hypervalent pentacoordinate boron compound featuring an N-B-N three-center four-electron bond. The experiments involved the preparation of a tridentate ligand precursor with two dimethylpyrimidine rings and the incorporation of a boron moiety. Key reactants included 4-chloroaniline, iodine, copper(II) bromide, t-butyl nitrite, and tin derivatives, among others. The synthesis process involved multiple steps, such as bromination, Stille coupling reactions, and lithiation, to ultimately obtain the boron compound with the tridentate ligand. Analyses used to characterize the compounds included X-ray crystallographic analyses, density functional theory (DFT) calculations, 1H NMR, 11B NMR, 13C NMR, and 119Sn NMR spectroscopy. These techniques were employed to determine the structural parameters, bond lengths, bond angles, and dihedral angles, as well as to estimate the bond energy of the N-B-N interaction and the energy contributions to the stability of the pentacoordinate versus tetracoordinate states. The study revealed that the conjugation energy difference was a crucial factor for shifting stability towards the pentacoordinate structure.

α,β- and β,γ-unsaturated phosphonium salts in reactions with halogenating agents

10.1134/S1070363210110046

The research focuses on the reactions of 1,4-bisphosphonium salts, which contain a common buta-1,3-dienylene group, with halogenating agents such as halogens and copper halides. The study aimed to investigate the expected 1,2- or 1,4-addition products; however, it was found that instead, adducts with complex anions were formed quantitatively. The experiments involved the use of various reagents, including bromine, copper(II) bromide, and copper(II) chloride, to react with the phosphonium salts. Analytical techniques employed included 1H and 31P NMR spectroscopy, UV spectroscopy, and X-ray diffraction analysis to characterize the products and confirm the structures of the complexes formed. Elemental analysis was also performed to determine the composition of the reaction products. The research revealed that the positive charge on phosphorus in the complexes was compensated by complex anions such as [Cu2Br6]2–, and the study also touched upon the potential bactericide activity and toxicity of the synthesized compounds.

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