4-Vinylcyclohexene
Appearance
Names | |
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IUPAC name
4-Vinylcyclohexene
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Other names
Butadiene dimer, 4-ethenylcyclohexene, 1-vinyl-3-cyclohexene; 4-vinyl-1-cyclohexene
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Identifiers | |
3D model (JSmol)
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ChemSpider | |
ECHA InfoCard | 100.002.590 |
EC Number |
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KEGG | |
PubChem CID
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RTECS number |
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UNII | |
CompTox Dashboard (EPA)
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Properties | |
C8H12 | |
Molar mass | 108.181 g/mol |
Appearance | colorless liquid |
Density | 0.8299 g/cm3 at 20°C |
Melting point | −108.9 °C (−164.0 °F; 164.2 K) |
Boiling point | 128.9 °C (264.0 °F; 402.0 K) |
0.05 g/L[1] | |
Solubility | soluble in benzene, diethyl ether, petroleum ether |
Vapor pressure | 2 kPa at 25°C |
Refractive index (nD)
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1.4639 (20 °C) |
Hazards | |
NFPA 704 (fire diamond) | |
Flash point | 21.2 °C (70.2 °F; 294.3 K) [3] |
269 °C (516 °F; 542 K) | |
Lethal dose or concentration (LD, LC): | |
LD50 (median dose)
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2563 mg/kg (oral, rat)[2] |
Safety data sheet (SDS) | Oxford University |
Related compounds | |
Related compounds
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1,3-Butadiene Cyclohexene |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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4-Vinylcyclohexene is an organic compound formed when 1,3-butadiene dimerizes in a Diels-Alder reaction.[4] It is found in industrial processes involving 1,3-butadiene, including the manufacture of lauric acid. The 4-vinylcyclohexene formed may be sold as-is or converted to vinylcyclohexene dioxide.
Manufacturing
Industrially, 4-vinylcyclohexene is manufactured by dimerizing 1,3-butadiene at 110 - 425°C at pressures of 1.3 - 100 MPa over silicon carbide and salts of copper or chromium.
Safety
4-Vinylcyclohexene is classified as a Group 2B carcinogen by the IARC .[3]
References
- ^ Lide, David R. (1998). Handbook of Chemistry and Physics (87 ed.). Boca Raton, FL: CRC Press. pp. 8–111. ISBN 0-8493-0594-2.
- ^ "Safety (MSDS) data for 4-vinylcyclohexene". Oxford University. Retrieved 2009-04-19.
- ^ a b "4-Vinylcyclohexene" (PDF). IARC. Retrieved 2009-04-19.
- ^ Wittcoff, Harold; Reuben, B. G.; Plotkin, Jeffrey S. (1998). Industrial Organic Chemicals (2 ed.). Wiley-Interscience. pp. 236–7. ISBN 978-0-471-44385-8. Retrieved 2009-04-19.