Hexafluoro-2-butyne
From Wikipedia, the free encyclopedia
| Hexafluoro-2-butyne | |
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| IUPAC name | 1,1,1,4,4,4-Hexafluoro-2-butyne |
| Other names | HFB |
| Identifiers | |
| CAS number | [692-50-2] |
| RTECS number | ES0702500 |
| SMILES | FC(F)(F)C#CC(F)(F)F |
| Properties | |
| Molecular formula | C4F6 |
| Molar mass | 162.03 g/mol |
| Appearance | Colorless gas |
| Density | 1.602 g/cm³ |
| Melting point |
-117 °C |
| Boiling point |
-25 °C |
| Solubility in water | Insoluble |
| Structure | |
| Dipole moment | 0 D |
| Hazards | |
| Main hazards | Toxic gas |
| R-phrases | 12-23 |
| S-phrases | 16-33-45 |
| Related compounds | |
| Related compounds | Dimethyl acetylenedicarboxylate, hexachlorobutadiene, acetylene |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references |
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Hexafluoro-2-butyne is the fluorocarbon with the formula CF3C≡CCF3. HFB, as it is known also, is a particularly electrophilic acetylene, hence a potent dienophile.[1][2]
It is prepared by the action of sulfur tetrafluoride on acetylenedicarboxylic acid and the reaction of KF with hexachlorobutadiene.
[edit] References
- ^ Essers, M.; Haufe, G. "Hexafluoro-2-butyne” in Encyclopedia of Reagents for Organic Synthesis (Ed: L. Paquette) 2004, J. Wiley & Sons, New York. doi:10.1002/047084289.
- ^ E S Turbanova, A A Petrov (1991). "Perfluoroalkyl(aryl)acetylenes". Russian Chemical Reviews 60 (5): 501–523. doi:.
