2methyl2propen1ol

2-methyl-2-propen-1-ol, also known as methallyl alcohol, is an organic compound with the chemical formula C4H8O. It is a primary alcohol with a double bond between the second and third carbon atoms and a methyl group attached to the second carbon. It is a colorless liquid at room temperature with a pungent odor.

Methallyl alcohol is an isomer of butenol. It can be synthesized through various methods, including the Prins reaction of isobutylene with formaldehyde, or by the reduction of methacrylic acid or its esters. Its reactivity stems from both the hydroxyl group and the alkene functionality, allowing it to participate in a range of chemical reactions.

This compound finds applications as an intermediate in the production of polymers, resins, and specialty chemicals. It can be used in the synthesis of pharmaceuticals and agrochemicals. The presence of the double bond makes it suitable for polymerization reactions, and the hydroxyl group can undergo esterification, etherification, and oxidation. Due to its unsaturated nature, it can also undergo addition reactions across the double bond. It is important to handle methallyl alcohol with care as it is flammable and can be irritating to skin and eyes.