Tropylium tetrafluoroborate
| |||
| |||
| Names | |||
|---|---|---|---|
| Other names
cycloheptatrienyl tetrafluoroborate
| |||
| Identifiers | |||
3D model (JSmol)
|
|||
| ChemSpider | |||
| ECHA InfoCard | 100.043.816 | ||
CompTox Dashboard (EPA)
|
|||
| |||
| Properties | |||
| C7H7BF4 | |||
| Molar mass | 177.94 g·mol−1 | ||
| Appearance | white solid | ||
| Melting point | 200 °C (392 °F; 473 K) decomposition | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
| |||
Tropylium tetrafluoroborate is an organic compound with the formula C7H7BF4. Containing the tropylium cation and the non-coordinating tetrafluoroborate counteranion, tropylium tetrafluoroborate is a rare example of a readily isolable carbocation. It is a white solid.[1]
This compound may be prepared by the reaction of cycloheptatriene with phosphorus trichloride, followed by tetrafluoroboric acid.[1][2]
See also
- Triphenylmethyl chloride, also known as Trityl chloride.
References
- ^ a b Kenneth Conrow (1963). "Tropylium Tetrafluoroborate". Org. Synth. 43: 101. doi:10.15227/orgsyn.043.0101.
- ^ Kane, John L.; Danheiser, Rick L. (2001). "Tropylium Tetrafluoroborate". Encyclopedia of Reagents for Organic Synthesis. Encyclopedia of Reagents for Organic Synthesis. doi:10.1002/047084289X.rt429. ISBN 0-471-93623-5.