CH2CCH3CH2Cl

CH2CCH3CH2Cl, also known as 3-chloro-2-methylpropene or methallyl chloride, is an organic compound with the chemical formula C4H7Cl. It is a colorless liquid at room temperature with a pungent odor. The molecule consists of a three-carbon chain with a double bond between the first and second carbon atoms, a methyl group attached to the second carbon, and a chlorine atom attached to the third carbon.

Methallyl chloride is an important intermediate in the synthesis of various organic chemicals. It is primarily used in the production of agricultural chemicals, such as herbicides and insecticides. It also finds application in the manufacturing of polymers, resins, and pharmaceuticals. Its reactivity stems from the presence of both a double bond and a chlorine atom, allowing for a range of chemical transformations.

The compound can be synthesized through several methods, commonly involving the chlorination of isobutylene. It is important to handle methallyl chloride with care due to its flammable nature and potential irritant properties. Proper ventilation and personal protective equipment are recommended when working with this substance.