2,2'-Dibromo-4,4'-diiodobiphenyl(CAS: 852138-93-3)

2,2'-Dibromo-4,4'-diiodobiphenyl (CAS: 852138-93-3) is a crystalline solid with a molecular weight of approximately 664.07 g/mol. It is poorly soluble in water but soluble in common organic solvents like dichloromethane and acetone. Chemically, it is highly reactive due to the presence of bromine and iodine functionalities, making it susceptible to various substitution reactions.

2,2'-Dibromo-4,4'-diiodobiphenyl is typically synthesized through the bromination and subsequent iodination of biphenyl using appropriate reagents. The reaction is usually carried out in the presence of a Lewis acid catalyst like aluminum bromide or iron(III) chloride to facilitate the electrophilic aromatic substitution reactions. The yield is generally moderate to high, depending on the reaction conditions.

2,2'-Dibromo-4,4'-diiodobiphenyl (CAS: 852138-93-3) is used in the pharmaceutical industry for the synthesis of certain dyes and photovoltaic materials. It also finds applications in the semiconductor industry for doping materials and in the polymer industry as a precursor for functional polymers. Additionally, it is utilized in the development of sensors due to its unique photochemical properties.

When handling 2,2'-Dibromo-4,4'-diiodobiphenyl (CAS: 852138-93-3), it is crucial to wear appropriate personal protective equipment (PPE) such as gloves, goggles, and a lab coat. Work should be conducted in a well-ventilated area or a fume hood to minimize inhalation risks. Spills should be cleaned up with caution, and the area should be thoroughly decontaminated. Always refer to the safety data sheet (SDS) for detailed handling and emergency procedures.