1,2-Dichloro-4-iodobenzene(CAS: 20555-91-3)

1,2-Dichloro-4-iodobenzene is a crystalline solid with a molecular weight of approximately 304.02 g/mol. Its solubility in water is low, with a solubility of about 0.03 g/L at 25°C. It is relatively chemically inert but can undergo substitution reactions with strong nucleophiles. The compound is insoluble in common organic solvents like ethanol and acetone but is soluble in polar solvents such as dimethyl sulfoxide (DMSO).

1,2-Dichloro-4-iodobenzene is typically synthesized by the combination of 1,2-dichlorobenzene and iodine in the presence of a base such as sodium hydroxide. The reaction proceeds through a nucleophilic substitution mechanism, leading to the formation of the desired dihalo-iodo derivative. The yield and selectivity of the reaction can be controlled by adjusting the reaction conditions and the concentration of the base.

1,2-Dichloro-4-iodobenzene is primarily used in the synthesis of various chemical intermediates and pharmaceuticals. It can also find applications in the production of dyes, in the development of materials for sensors and semiconductors, and as an intermediate in organic synthesis. Its unique halogen substitution pattern makes it valuable for specific chemical transformations in industry.

Proper handling of 1,2-Dichloro-4-iodobenzene requires the use of personal protective equipment (PPE) such as gloves, safety goggles, and a lab coat. The compound should be handled in a fume hood to minimize inhalation risks. Spills should be cleaned up with appropriate absorbent materials and disposed of according to hazardous waste protocols. Always refer to the Safety Data Sheet (SDS) for specific handling and emergency procedures.