3,3'-Dibromobiphenyl(CAS: 16400-51-4)

3,3'-Dibromobiphenyl (CAS: 16400-51-4) is a crystalline solid with a high melting point of around 288°C. It has a molecular weight of approximately 318.07 g/mol. The compound is slightly soluble in common organic solvents such as ethanol and acetone but is generally insoluble in water. Chemically, it is less reactive than bromobenzene but can undergo reactions such as electrophilic aromatic substitution, making it useful in organic synthesis.

3,3'-Dibromobiphenyl can be synthesized through the bromination of biphenyl using bromine and a Lewis acid catalyst such as aluminum bromide. The reaction typically proceeds with high selectivity and moderate yield. The biphenyl is dissolved in a solvent like benzene or toluene, and the bromination step is carried out at a temperature of around 100°C.

3,3'-Dibromobiphenyl is primarily used in the pharmaceutical industry for the production of certain drugs and intermediates. It is also utilized in the synthesis of dyes and pigments. Additionally, it is employed in the polymer industry as a flame retardant additive and in the production of electronic materials such as sensors and semiconductor devices.

When handling 3,3'-Dibromobiphenyl, it is crucial to wear appropriate personal protective equipment (PPE), including gloves, safety glasses, and a lab coat. Work should be conducted in a well-ventilated area or fume hood to minimize inhalation risk. Spills should be cleaned up using absorbent materials, and the area should be rinsed with water. Always consult the Safety Data Sheet (SDS) for detailed information on handling and storage procedures.