363359
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
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
EC Number:
203-452-9
Beilstein/REAXYS Number:
1718755
MDL number:
Assay:
≥99%
InChI key
IAQRGUVFOMOMEM-ONEGZZNKSA-N
InChI
1S/C4H8/c1-3-4-2/h3-4H,1-2H3/b4-3+
SMILES string
C\C=C\C
vapor pressure
1.9 mmHg ( 0 °C)
assay
≥99%
expl. lim.
9.3 %
bp
1 °C (lit.)
mp
−140 °C (lit.)
Quality Level
Related Categories
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.
Other Notes
Brass hose adapter Z146811 or brass body mini gas regulator Z513539 is recommended.
signalword
Danger
hcodes
pcodes
Hazard Classifications
Flam. Gas 1 - Press. Gas Liquefied gas
Storage Class
2A - Gases
wgk
nwg
flash_point_f
-29.2 °F - closed cup
flash_point_c
-34 °C - closed cup
ppe
Eyeshields, Faceshields, Gloves, multi-purpose combination respirator cartridge (US)
Regulatory Information
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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
Fumitoshi Shibahara et al.
Bioorganic & medicinal chemistry letters, 12(14), 1825-1827 (2002-06-28)
A new class of polymer-supported (R,S)-BINAPHOS 1e in which the parent BINAPHOS has two alkoxy-substituents at the 3-positions of the phenyls, has been synthesised. Using its Rh(I) complex, asymmetric hydroformylation of olefins proceeded with higher enantioselectivity in some cases compared
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