2octyne

2-octyne is an organic compound with the chemical formula C8H14. It is a straight-chain alkyne, meaning it contains a triple bond between carbon atoms. In 2-octyne, this triple bond is located between the second and third carbon atoms of the eight-carbon chain. It is a colorless liquid at room temperature and pressure.

As with other alkynes, 2-octyne undergoes addition reactions. The triple bond is reactive and can add hydrogen, halogens, or other molecules. For example, hydrogenation of 2-octyne can lead to the formation of cis-2-octene or trans-2-octene, and further hydrogenation will yield octane. It can also be oxidized or undergo reactions typical of unsaturated hydrocarbons.

2-octyne can be synthesized through various methods, often involving the dehydrohalogenation of dihaloalkanes or the coupling of smaller alkyne or alkyl halide fragments. Its physical properties, such as boiling point and density, are characteristic of a hydrocarbon of its molecular weight. Due to its specific structure and reactivity, it finds limited use in specialized organic synthesis applications.