Structure via PubChem · Public domain (PubChem)
but-2-ene
Sign in to saveAlso known as beta-butene, 2-butene, beta-butylene, pseudobutylene
2-Butene is an acyclic alkene with four carbon atoms. It is the simplest alkene exhibiting cis/trans-isomerism (also known as (E/Z)-isomerism); that is, it exists as two geometric isomers cis-2-butene ((Z)-but-2-ene) and trans-2-butene ((E)-but-2-ene).
Chemical data
- Formula
- C4H8
- Molecular weight
- 56.11 g/mol
- IUPAC name
- but-2-ene
- SMILES
- CC=CC
- InChIKey
- IAQRGUVFOMOMEM-UHFFFAOYSA-N
- XLogP
- 2.3
- Polar surface area
- 0 Ų
- H-bond donors
- 0
- H-bond acceptors
- 0
- Formal charge
- 0
via PubChem
Wikidata facts
Show 3 more facts
- chemical formula
- C₄H₈
- canonical SMILES
- CC=CC
- Commons category
- 2-Butene
via Wikidata · CC0
~1 min read
Encyclopedic overview
2 sectionsContents
- References
- External links
2-Butene is an acyclic alkene with four carbon atoms. It is the simplest alkene exhibiting cis/trans-isomerism (also known as (E/Z)-isomerism); that is, it exists as two geometric isomers cis-2-butene ((Z)-but-2-ene) and trans-2-butene ((E)-but-2-ene).
It is a petrochemical, produced by the catalytic cracking of crude oil or the dimerization of ethylene. Its main uses are in the production of high-octane gasoline (petrol) on alkylation units and butadiene, although some 2-butene is also used to produce the solvent butanone via hydration reaction to 2-butanol followed by oxidation.
Excerpted from Wikipedia’s “but-2-ene” article, available under the CC BY-SA 4.0 licence.