1,2,3-Cyclohexatriene
| Names | |
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| Preferred IUPAC name
Cyclohexa-1,2,3-triene | |
| Identifiers | |
3D model (JSmol)
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PubChem CID
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CompTox Dashboard (EPA)
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| Properties | |
| C6H6 | |
| Molar mass | 78.114 g·mol−1 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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1,2,3-Cyclohexatriene is an unstable chemical compound with the molecular formula C6H6. It is an unusual isomer of benzene in which the three double bonds are cumulated.
This highly strained compound was first prepared in 1990, by reacting a cyclohexadiene derivative with cesium fluoride. The product was too reactive to be isolated on its own, so its existence was confirmed by trapping via a cycloaddition reaction.
1,2,3-Cyclohexatriene and its derivatives undergo a variety of reactions including cycloadditions, nucleophilic additions, and σ-bond insertions, and therefore they can be versatile reagents for organic synthesis.