CAS 7787-70-4: Copper bromide (CuBr)

Copper(I) bromide, min. 98%

Copper bromide is a chemical compound that contains copper and bromine. It is a salt that has been used to treat bowel disease, and has also been shown to have anti-inflammatory properties. Copper bromide can be synthesized by the reaction of copper chloride with sodium bromide in water. The electrochemical impedance spectroscopy showed that the redox potential of the copper atoms in this compound is 0.07 volts, which makes it an ideal candidate for use as a biological electrode. Copper bromide is soluble in water and reacts with nitrogen atoms, giving it detection sensitivity to nitric oxide. The thermal expansion coefficient of this compound is 5.5 × 10-6/°C, which means it will contract when heated or expand when cooled.

It is used as effective catalyst for tetrahydropyranylation of alcohols. It can also be used in combination with palladium in catalytic synthesis of 3-haloindoles through annulation process. It is widely used in the synthesis of organic fine chemicals. The compound is widely used in the synthesis of organic compounds. It is also useful for copper-mediated coupling reactions. A silica gel support copper bromide hexa methyltriethylenetetramine complex has shown useful application for the atom transfer radical polymerization of methyl methacrylate in toluene. This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Copper(I) bromide

This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. Some documentation and label information may refer to the legacy brand. The original Acros Organics product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

It finds many applications in organic synthesis, as a catalyst and a reagent. It is used as a catalyst in Sandmeyer reaction for preparing aryl bromides from arylamines through diazonium salts. It forms complexes with Lewis bases, such as dimethylsulfide, which is a precursor to organocopper reagents. Reactions involving Atom Transfer Radical Polymerization (ATRP) and Cu-catalyzed Cross-Dehydrogenative Couplings (CDC) are catalyzed by CuBr complexes. This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications Copper (I) bromide is used as a reagent to brominate electron-rich aromatic compounds (e.g. Phenol: P318000). Copper (I) bromide is also used to brominate aliphatic ketones (e.g. Acetone: A163800). References Bhatt, S. & Nayak, S.: Synth. Comm., 37, 1381 (2007); Kojima, Y. & Kawaguchi, S.: Bull. Chem. Soc. Jpn., 45, 1293 (1972)

Copper(I) bromide