4Methoxy2methylbut2ene

4-Methoxy-2-methylbut-2-ene is an organic compound with the chemical formula C7H14O. It is a substituted alkene, specifically a methoxy-substituted 2-methylbut-2-ene. The molecule consists of a but-2-ene backbone, which is a four-carbon chain with a double bond between the second and third carbon atoms. The but-2-ene backbone is substituted with a methyl group (-CH3) at the second carbon atom and a methoxy group (-OCH3) at the fourth carbon atom. The methoxy group is an ether functional group, where a methyl group is attached to an oxygen atom, which in turn is bonded to the fourth carbon atom of the but-2-ene backbone. The compound is a colorless liquid at room temperature and has a mild, ether-like odor. It is soluble in organic solvents such as ethanol and ether, but insoluble in water. 4-Methoxy-2-methylbut-2-ene is used as a precursor in the synthesis of various pharmaceuticals and agrochemicals. It can undergo various chemical reactions, including substitution, addition, and oxidation, due to the presence of the double bond and the methoxy group. The compound is typically prepared through the reaction of a suitable alkyl halide with a methoxide ion in the presence of a base.