Formula C4H6 Density 691 kg/m³ | Molar mass 54.0904 g/mol Classification Alkyne | |
Addition of chlorine to 2 butyne
2-Butyne (dimethylacetylene, crotonylene or but-2-yne) is an alkyne with chemical formula CH3C≡CCH3. Produced artificially, it is a colorless, volatile, pungent liquid at standard temperature and pressure.
Contents
2-Butyne (dimethylethin) forms with 5-decyne (dibutylethin), 4-octyne (dipropylethin) and 3-hexyne (diethylethin) a group of symmetric alkynes.
Synthesis
2-Butyne can be synthesized by the rearrangement of ethylacetylene in a solution of ethanolic potassium hydroxide.
Applications
2-Butyne, along with propyne, is used to synthesize alkylated hydroquinones in the total synthesis of Vitamin E.
References
2-Butyne Wikipedia(Text) CC BY-SA