2methylprop2enyl

2-methylprop-2-enyl, also known as methallyl, is an organic compound with the chemical formula C4H7. It is a branched alkene, meaning it contains a carbon-carbon double bond and a methyl group attached to one of the double-bonded carbons. Its structure can be represented as (CH3)2C=CHCH2. This isomer of butene features a vinyl group substituted with two methyl groups. The presence of the double bond makes it a reactive species, capable of undergoing various addition reactions common to alkenes. It is a colorless liquid at room temperature. Methallyl compounds are often used as intermediates in the synthesis of polymers and other organic chemicals. For instance, methallyl alcohol is a precursor to certain resins and plasticizers. The methallyl group can be incorporated into polymer chains through radical polymerization. Its reactivity also allows for its use in Diels-Alder reactions and other organic transformations.