3,4-epoxy-1-butene

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Structural formula
Structural formula of 3,4-epoxy-1-butene
General
Surname 3,4-epoxy-1-butene
other names
  • 2-vinyloxirane
  • 3,4-epoxy-1-butene
  • Butadiene monoxide
  • 2-ethenyl oxirane ( IUPAC )
Molecular formula C 4 H 6 O
Brief description

colorless liquid

External identifiers / databases
CAS number
  • 930-22-3
  • 62249-81-4 (R isomer)
  • 62249-80-3 (S isomer)
PubChem 13586
Wikidata Q15910431
properties
Molar mass 70.09 g mol −1
Physical state

liquid

density

0.87 g cm −3 (25 ° C)

boiling point
  • 65-66 ° C
  • 66 ° C (R and S isomer)
solubility

soluble in ethanol, diethyl ether, benzene and other organic solvents

Refractive index

1.417 (20 ° C)

safety instructions
GHS labeling of hazardous substances
02 - Highly / extremely flammable 07 - Warning

danger

H and P phrases H: 225-302-319
P: 210-305 + 351 + 338
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . Refractive index: Na-D line , 20 ° C

3,4-Epoxy-1-butene is a chemical compound from the oxirane group and is the epoxide of 1,3-butadiene .

Extraction and presentation

3,4-Epoxy-1-butene can be obtained by epoxidizing 1,3-butadiene.

properties

3,4-epoxy-1-butene is a colorless clear liquid.

use

3,4-Epoxy-1-butene is used as an intermediate in the production of other chemical compounds (such as 2,5-dihydrofuran ) and as a comonomer with propylene oxide for polyethers .

Individual evidence

  1. ↑ a b c d e f g h data sheet 3,4-epoxy-1-butene, 98% from Sigma-Aldrich , accessed on September 6, 2015 ( PDF ).
  2. ↑ a b Data sheet (R) -2-Vinyloxirane, ≥95.0% (sum of enantiomers, GC) from Sigma-Aldrich , accessed on September 6, 2015 ( PDF ).
  3. ↑ Data sheet (S) -2-Vinyloxirane, technical, ≥90% (sum of enantiomers, GC) from Sigma-Aldrich , accessed on September 6, 2015 ( PDF ).
  4. ↑ a b Entry on 3,4-epoxy-1-butenes in the Hazardous Substances Data Bank , accessed on September 6, 2015.
  5. ↑ T. Otto, P. Pfeifer, S. Pitter, B. Powietzka: Organic synthesis in a microreactor - heterogeneously catalyzed epoxidation of 1,3-butadiene. In: Chemical Engineer Technology. 81, 2009, p. 349, doi : 10.1002 / cite.200800151 .