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363359

Sigma-Aldrich

2-Butene, mixture of cis and trans

≥99%

Synonym(s):

β-Butylene, Pseudobutylene

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About This Item

Linear Formula:
CH3CH=CHCH3
CAS Number:
Molecular Weight:
56.11
Beilstein:
1718755
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

vapor pressure

1.9 mmHg ( 0 °C)

Assay

≥99%

expl. lim.

9.3 %

bp

1 °C (lit.)

mp

−140 °C (lit.)

SMILES string

C\C=C\C

InChI

1S/C4H8/c1-3-4-2/h3-4H,1-2H3/b4-3+

InChI key

IAQRGUVFOMOMEM-ONEGZZNKSA-N

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General description

2-Butene is an alkene. All-silica zeolite RUB-41, containing 8- and 10-membered rings, is reported to be capable of separating trans-2-butene and cis-2-butene from 1-butene. Asymmetric gydrozirconation of cis- and trans-2-butene is reported. Stereospecific addition of methylene to trans-2-butene is reported to afford trans-1,2dimethylcyclopropane while similar addition to cis-2-butene affords cis-1,2dimethylcyclopropane.

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Pictograms

FlameGas cylinder

Signal Word

Danger

Hazard Statements

Precautionary Statements

Hazard Classifications

Flam. Gas 1 - Press. Gas Liquefied gas

Storage Class Code

2A - Gases

WGK

nwg

Flash Point(F)

-29.2 °F - closed cup

Flash Point(C)

-34 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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Yonghui Zhang et al.
Journal of the American Chemical Society, 125(29), 8746-8747 (2003-07-17)
Hydrozirconation of cis-2-butene with Cp*ZrHCl[N(t-Bu)C(Me)N(Et)], generated in situ through hydrogenolysis of Cp*ZrCl(SiMe2Ph)[N(t-Bu)C(Me)N(Et)] (5), proceeds in high yield to produce a 1:2 mixture of the kinetically stable, diastereomeric sec-butyl complexes, 3a and 3b. Hydrozirconation of trans-2-butene under identical conditions provides a
Methylene, CH2. Stereospecific Reaction with cis-and trans-2-Butene.
Woodworth RC and Skell PS.
Journal of the American Chemical Society, 81(13), 3383-3386 (1959)
Ollie M Gonzalez-James et al.
Journal of the American Chemical Society, 134(4), 1914-1917 (2012-01-11)
An unusual intramolecular kinetic isotope effect (KIE) in the reaction of dichloroketene with cis-2-butene does not fit with a simple asynchronous cycloaddition transition state, but it can be predicted from trajectory studies on a bifurcating energy surface. The origin of
Robert R Arnts
Environmental science & technology, 42(20), 7663-7669 (2008-11-06)
The continuous addition of trans-2-butene to air containing ozone-reactive volatile and semivolatile organic compounds prior to sampling on Tenax-TA adsorbent was found to be an effective means of removing ozone and reducing analyte losses of ozone reactive biogenic volatile organic
Nadiya Bakhiya et al.
Archives of toxicology, 84(7), 563-578 (2010-03-20)
Furan is formed during commercial or domestic thermal treatment of food. The initial surveys of furan concentrations in heat-treated foods, published by European and US authorities, revealed the presence of relatively high furan levels in coffee, sauces, and soups. Importantly

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