1,4-Cyclohexadiene
From Wikipedia, the free encyclopedia
| 1,4-Cyclohexadiene | |
|---|---|
 |
|
| IUPAC name | Cyclohexa-1,4-diene |
| Other names | 1,4-Cyclohexadiene, 1,4-Dihydrobenzene, 1,4-CHDN, CHDN |
| Identifiers | |
| CAS number | [628-41-1] |
| PubChem | |
| EINECS number | |
| ChEBI | |
| SMILES | C1C=CCC=C1 |
| InChI | 1/C6H8/c1-2-4-6-5-3-1/h1-2,5-6H,3-4H2 |
| Properties | |
| Molecular formula | C6H8 |
| Molar mass | 80.13 g/mol |
| Appearance | Colourless liquid |
| Density | 0.847 g/cm³ |
| Melting point |
-49.2 °C |
| Boiling point |
88 °C |
| Hazards | |
| EU classification | Highly flammable (F+), Toxic (T) |
| NFPA 704 |
 3
2
0
|
| R-phrases | R11, R23/24/25, R36, R45, R48 |
| S-phrases | S16, S27, S36/37/39, S45 |
| Flash point | -6 °C |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references |
|
1,4-Cyclohexadiene is a highly flammable cycloalkene that occurs as a colorless clear liquid.
1,4-Cyclohexadiene and related compounds may be prepared from benzene using lithium or sodium in liquid ammonia, this process being known as a Birch reduction. However 1,4-cyclohexadiene is easily oxidised to benzene, the driving force being the formation of an aromatic ring. The conversion to an aromatic system may be performed in the laboratory using an alkene such as styrene, along with a hydrogen transfer agent such as palladium metal supported on charcoal.
γ-Terpinene is a naturally occurring derivative of 1,4-cyclohexadiene, found in the essential oils of coriander, lemon, and cumin.
[edit] References
 |
This article does not cite any references or sources. (September 2007) Please help improve this article by adding citations to reliable sources. Unverifiable material may be challenged and removed. |
[edit] External links
|
||||||||
