2-octene

Structural formula
cis -form (top), trans -form (bottom)
General
Surname	2-octene
other names	Oct-2-en
Molecular formula	C 8 H 16
Brief description	colorless liquid
External identifiers / databases
CAS number 111-67-1 7642-04-8 ( cis ) 13389-42-9 ( trans ) PubChem 8126 Wikidata Q30104056
properties
Molar mass	112.22 g mol −1
Physical state	liquid
density	0.715 g cm −3 0.7243 g cm −3 ( cis ) 0.7199 g cm −3 ( trans )
Melting point	−101.3 ° C ( cis ) −88 ° C ( trans )
boiling point	123-125 ° C 125.6 ° C ( cis ) 123 ° C ( trans )
Vapor pressure	19.3 kPa (75 ° C, cis ) 19.6 kPa (75 ° C, trans )
solubility	practically insoluble in water soluble in ether, ethanol, acetone, benzene and chloroform
Refractive index	1.4150 (20 ° C) 1.415 (20 ° C, cis ) 1.413 (20 ° C, trans )
safety instructions
GHS labeling of hazardous substances danger H and P phrases H: 225-304 P: 210-280-301 + 310-303 + 361 + 353-405-501
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

2-Octene is a chemical compound from the alkenes group that occurs in two isomeric forms.

Extraction and presentation

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

properties

2-octene is a colorless liquid that is practically insoluble in water.

use

2-Octene can be used as a flavoring and for organic synthesis.

Individual evidence

1. ↑ ^{a b c d e f g h} data sheet 2-Octene, cis + trans, 98% from AlfaAesar, accessed on June 1, 2017 ( PDF )(JavaScript required) .
2. ↑ ^{a b c d e f g h i} 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. ↑ ^{a b} Data sheet trans-2-Octene, 97% from Sigma-Aldrich , accessed on June 1, 2017 ( PDF ).
4. ↑ ^{a b} David R. Lide: Handbook of Organic Solvents . CRC Press, 1994, ISBN 978-0-8493-8930-6 , pp. 535 ( limited preview in Google Book search).
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. ↑ europa.eu: Official Journal of the European Union L 128/73 COMMISSION DECISION of May 18, 2005 amending Decision 1999/217 / EC with regard to the list of flavoring substances used in or on food , accessed on June 1, 2017.
7. ↑ Michael D. Larra? Aga, Richard J. Lewis, Robert A. Lewis: Hawley's Condensed Chemical Dictionary . John Wiley & Sons, 2016, ISBN 978-1-118-13515-0 , pp. 1003 ( limited preview in Google Book search).