4klorotolueen

4-chlorotoluene, commonly referred to as chlorotoluene or para-chlorotoluene, is an aromatic organic compound with the chemical formula C₇H₇Cl. It belongs to the class of chlorinated aromatic hydrocarbons and is a colorless to pale yellow liquid with a characteristic aromatic odor. The compound consists of a benzene ring substituted with a methyl group (toluene) and a chlorine atom at the para position relative to the methyl group.

This chemical is primarily used as an intermediate in the synthesis of various pharmaceuticals, agrochemicals, and specialty chemicals. It serves as a precursor in the production of dyes, fragrances, and other organic compounds. Additionally, 4-chlorotoluene is utilized in the manufacturing of certain polymers and as a solvent in specific industrial applications.

The compound is typically produced through the chlorination of toluene, a process that can be catalyzed by Lewis acids or ultraviolet light. It is also formed as a byproduct in some industrial processes involving toluene. Due to its reactivity, 4-chlorotoluene is often handled under controlled conditions to minimize exposure risks.

Like many chlorinated aromatic compounds, 4-chlorotoluene exhibits moderate toxicity and should be handled with care. Proper ventilation and protective equipment are recommended when working with this substance to avoid inhalation or skin contact. Environmental regulations may apply to its storage, transport, and disposal, as it can pose risks to aquatic life and may persist in the environment.

In research and laboratory settings, 4-chlorotoluene is occasionally used as a model compound to study reaction mechanisms involving aromatic substitution and electrophilic aromatic substitution processes. Its physical properties, such as a boiling point of approximately 162°C and a density of around 1.07 g/cm³, make it suitable for certain applications in organic synthesis.