1chloro2mylipropaani

1-chloro-2-methylpropane, commonly known as isobutyl chloride, is an organochlorine compound with the formula C4H9Cl. It is typically a colorless liquid at room temperature with a sharp odor. It is relatively soluble in organic solvents and has limited solubility in water. It is used primarily as an intermediate in organic synthesis.

Its IUPAC name is 1-chloro-2-methylpropane. Other names include isobutyl chloride and 2-methylpropyl chloride. The molecule has the structure CH3-CH(CH3)-CH2-Cl, a primary alkyl chloride that can act as an electrophile in substitution reactions.

Isobutyl chloride is produced mainly by chlorination of isobutane under radical conditions or by conversion of isobutanol to the chloride using reagents such as thionyl chloride or phosphorus oxychloride. Purification is typically accomplished by distillation to separate it from other chlorinated isomers and side products.

In chemical reactions, isobutyl chloride readily undergoes nucleophilic substitution and hydrolysis. It reacts with water to form isobutanol and hydrogen chloride, and it can be used to introduce the isobutyl group into larger molecules through alkylation or substitution. It serves as a reactive intermediate in the synthesis of pharmaceuticals, agrochemicals, fragrances, and various esters and ethers.

Safety considerations must be observed when handling isobutyl chloride. It is flammable and can cause irritation to skin, eyes, and the respiratory tract. It should be used in well-ventilated areas or fume hoods, with appropriate personal protective equipment, and stored away from oxidizers. It reacts with moisture and air, so containers should be kept tightly closed.