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| Names | |||
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| Preferred IUPAC name Cyclobutene | |||
| Identifiers | |||
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3D model (JSmol) | |||
| ChEBI | |||
| ChemSpider |
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| ECHA InfoCard | 100.011.360 | ||
| EC Number |
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| Properties | |||
| C4H6 | |||
| Molar mass | 54.092 g·mol−1 | ||
| Appearance | Colorless gas | ||
| Density | 0.733 g/cm3 | ||
| Boiling point | 2 °C (36 °F; 275 K)[1] | ||
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa). | |||
Cyclobutene is anorganic compound with thechemical formulaC4H6. It is acycloalkene. It is a colorless gas that easilycondenses. It is of interest in research but currently has no practical applications. A modern synthesis involves the 2-stepdehydration ofcyclobutanol.[1] The compound was first prepared bythermolysis of theammonium salt[C4H7N(CH3)3]OH (cyclobutyltrimethylammonium hydroxide).[2]
Cyclobutene thermallyisomerizes to1,3-butadiene. This stronglyexothermic reaction reflects the dominance ofring strain. In contrast, the correspondingequilibrium forhexafluorocyclobutene disfavorshexafluorobutadiene.[3]
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