3-octene

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Structural formula
Structural formula of cis-3-octene

Structural formula of trans-3-octene
cis -form (above) trans -form (below)
General
Surname 3-octene
other names

Oct-3-en

Molecular formula C 8 H 16
Brief description

colorless liquid with a characteristic odor

External identifiers / databases
CAS number
  • 592-98-3
  • 14850-22-7 ( cis )
  • 14919-01-8 ( trans )
EC number 209-779-3
ECHA InfoCard 100,008,892
Wikidata Q30108402
properties
Molar mass 112.22 g mol −1
Physical state

liquid

density
  • 0.716 g cm −3
  • 0.7152 g cm −3 ( cis )
  • 0.7212 g cm −3 ( trans )
Melting point
  • −126 ° C ( cis )
  • −110 ° C ( trans )
boiling point
  • 123 ° C ( cis )
  • 121–222 ° C ( trans )
Vapor pressure

43 hPa (37 ° C, trans )

solubility
  • practically insoluble in water
  • soluble in ether, ethanol, acetone, benzene and chloroform
Refractive index
  • 1.4130 (20 ° C, trans )
safety instructions
GHS labeling of hazardous substances

trans -3-octene

02 - Highly / extremely flammable

danger

H and P phrases H: 225
P: 210-280-240-241-303 + 361 + 353-501
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-Octene is a chemical compound from the group of alkenes .

Isomerism

The unsymmetrically substituted double bond has E / Z isomerism , 3-octene therefore exists in two isomeric forms, as ( E ) - or trans -3-octene and ( Z ) - or cis -3-octene.

Extraction and presentation

3-octene can be prepared by isomerization of 1-octene are obtained, with about 20% trans -3-octene, 50% trans -2-octene , 10% cis -2-octene, 10% trans -4-octene and other isomers arising .

properties

3-octene is a colorless liquid with a characteristic odor.

use

3-Octene can be used for organic synthesis.

Individual evidence

  1. a b c d e f g h i data sheet trans-3-octene, 97% from AlfaAesar, accessed on June 2, 2017 ( PDF )(JavaScript required) .
  2. a b c d e f g William M. Haynes: CRC Handbook of Chemistry and Physics, 97th Edition . CRC Press, 2016, ISBN 978-1-4987-5429-3 , pp. 426 ( limited preview in Google Book search).
  3. External identifiers or database links to trans-3-octene : CAS number: 14919-01-8, EC number: 238-990-3, ECHA InfoCard: 100.035.431 , PubChem : 638228 , ChemSpider : 553784 , Wikidata : Q27160872 .
  4. External identifiers of or database links for cis-3-octene : CAS number: 14850-22-7, EC number: 238-912-8, ECHA InfoCard: 100.035.360 , PubChem : 5362722 , ChemSpider : 4515202 , Wikidata : Q27160868 .
  5. Ei-ichi Negishi: Handbook of Organopalladium Chemistry for Organic Synthesis, 2 Volume Set . John Wiley & Sons, 2003, ISBN 0-471-47381-2 , pp. 2787 ( limited preview in Google Book search).
  6. Supramolecular Catalysis . John Wiley & Sons, 2008, ISBN 978-3-527-62179-8 , pp. 207 ( books.google.de ).