1,3-Dibromo-5-fluorobenzene(CAS: 1435-51-4)

1,3-Dibromo-5-fluorobenzene is a crystalline solid with a molecular weight of approximately 267.04 g/mol. It has a low solubility in water but is more soluble in organic solvents such as dichloromethane and acetone. The compound is reactive towards nucleophiles and undergoes substitution reactions. It has a melting point of around 75-77°C and a boiling point of approximately 273°C. It is not flammable but may release toxic and corrosive fumes upon thermal decomposition.

1,3-Dibromo-5-fluorobenzene is typically synthesized through the bromination of 5-fluorobenzenesulfonic acid or 5-fluorobenzenesulfonamide using bromine in the presence of a Lewis acid such as aluminum bromide. The reaction proceeds via electrophilic aromatic substitution, providing high selectivity and yield. Common solvents include dichloromethane or carbon tetrachloride.

1,3-Dibromo-5-fluorobenzene is used in the pharmaceutical industry for the synthesis of certain drug intermediates. It is also employed in the production of organic semiconductors and in the development of polymer materials with specific electronic properties. Additionally, it finds applications in the manufacturing of sensors and as a reagent in analytical chemistry.

When handling 1,3-Dibromo-5-fluorobenzene, it is crucial to wear appropriate personal protective equipment (PPE), including gloves, safety goggles, and a lab coat. The compound should be reacted in a well-ventilated fume hood to avoid inhalation of toxic and corrosive fumes. In case of a spill, it should be carefully cleaned up using appropriate absorbents, and the area should be rinsed with water. Always refer to the Safety Data Sheet (SDS) for detailed handling and disposal instructions.