2,3-Epoxybutane
Names | |
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Preferred IUPAC name
2,3-Dimethyloxirane | |
Other names
2,3-Butyleneoxide, 2,3-Buteneoxide
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Identifiers | |
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3D model (
JSmol ) |
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ECHA InfoCard
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100.019.889 |
EC Number |
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PubChem CID
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UN number | 3271 |
CompTox Dashboard (EPA)
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Properties | |
C4H8O | |
Molar mass | 72.107 g·mol−1 |
Appearance | colorless liquid |
Density | 0.837 g·cm−3 |
Boiling point | 64–78 °C (147–172 °F; 337–351 K) |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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2,3-Epoxybutane is an
meso isomer
. All are colorless liquids.
Preparation and reactions
2,3-Epoxybutane is prepared from
chlorohydrin:[1]
- CH3CH=CHCH3 + HOCl → CH3CH(OH)CH(Cl)CH3
- CH3CH(OH)CH(Cl)CH3 → CH3CH(O)CHCH3 + HCl
A common reaction is its hydration to
ring-opening reactions have been reported.[2]