2-Butyne
 | |
 | |
| Names | |
|---|---|
| Preferred IUPAC name
But-2-yne | |
| Other names
Dimethylacetylene Crotonylene | |
| Identifiers | |
| 3D model (JSmol) |
|
| ChemSpider | |
| ECHA InfoCard | 100.007.239 |
| PubChem CID |
|
| |
| |
| Properties | |
| C4H6 | |
| Molar mass | 54.0904 g/mol |
| Density | 0.691 g/mL |
| Melting point | −32 °C (−26 °F; 241 K) |
| Boiling point | 27 °C (81 °F; 300 K) |
| Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
 verify (what is  ?) | |
| Infobox references | |
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.
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.[3]
Applications
2-Butyne, along with propyne, is used to synthesize alkylated hydroquinones in the total synthesis of Vitamin E.[4]
See also
- 1-Butyne, a position isomer
References
- ↑ 2-Butyne at Sigma-Aldrich
- ↑ NIST Chemistry WebBook page for 2-butyne
- ↑ Victor von Richter; Hans Meerwein (1916). Organic Chemistry: Chemistry of the aliphatic series Vol. I: Smith's 3rd American Ed. Philadelphia: P. Blakiston's Sons & Co. p. 89.
- ↑ Reppe, Walter; Kutepow, N; Magin, A (1969). "Cyclization of Acetylenic Compounds". Angewandte Chemie International Edition in English. 8 (10): 727–733. doi:10.1002/anie.196907271. Retrieved 26 December 2013.
This article is issued from
Wikipedia.
The text is licensed under Creative Commons - Attribution - Sharealike.
Additional terms may apply for the media files.