2,2',4-Trichlorobiphenyl(CAS: 37680-66-3)

2,2',4-Trichlorobiphenyl (CAS: 37680-66-3) is a crystalline solid at room temperature with a high melting point. Its molecular weight is approximately 329.04 g/mol. This compound has low water solubility and moderate solubility in organic solvents like chloroform and acetone. It is relatively unreactive under normal conditions but can undergo substitution reactions under certain conditions. Due to its toxicity, it is important to handle with care and follow appropriate safety guidelines.

2,2',4-Trichlorobiphenyl is typically synthesized through a Friedel-Crafts alkylation reaction of biphenyl with chlorine gas in the presence of a Lewis acid catalyst like aluminum chloride. The reaction requires strict control of temperature and pressure to achieve high selectivity and yield. This method ensures that the chlorine atoms are added preferentially to the 2,2', and 4-positions of the biphenyl, leading to a high purity product.

2,2',4-Trichlorobiphenyl (CAS: 37680-66-3) is used in various industries, particularly in the production of pesticides, plasticizers, and flame retardants. It has also been utilized in the synthesis of other chlorinated compounds for industrial applications. Due to environmental concerns, its use is limited in modern industrial practices, but it still finds occasional use in specialized applications where its properties are advantageous.

When handling 2,2',4-Trichlorobiphenyl (CAS: 37680-66-3), it is crucial to wear appropriate personal protective equipment (PPE), including gloves, safety goggles, and a lab coat. Work within a well-ventilated area or fume hood, as it is toxic and can cause skin irritation and respiratory issues. In case of a spill, immediately evacuate the area and contact the chemical safety officer. Always consult the Safety Data Sheet (SDS) for detailed safety instructions and emergency procedures.