254339
2-Butyne
99%
Synonym(s):
Crotonylene, Dimethylacetylene
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About This Item
Linear Formula:
CH3C≡CCH3
CAS Number:
Molecular Weight:
54.09
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
EC Number:
207-962-2
Beilstein/REAXYS Number:
1361340
MDL number:
Assay:
99%
Form:
liquid
InChI key
XNMQEEKYCVKGBD-UHFFFAOYSA-N
InChI
1S/C4H6/c1-3-4-2/h1-2H3
SMILES string
CC#CC
vapor pressure
11.47 psi ( 20 °C)
assay
99%
form
liquid
Quality Level
refractive index
n20/D 1.393 (lit.)
bp
27 °C (lit.)
mp
−32 °C (lit.)
density
0.691 g/mL at 25 °C (lit.)
storage temp.
2-8°C
Related Categories
General description
The ion-molecule reaction of the aromatic distonic N-methyl-pyridinium-4-yl radical cation with 2-butyne has been investigated using ion trap mass spectrometry.
Application
2-Butyne has been used in preparation of THF-free metallacyclobutene complexes.
signalword
Danger
hcodes
Hazard Classifications
Eye Irrit. 2 - Flam. Liq. 1 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
Storage Class
3 - Flammable liquids
wgk
WGK 3
flash_point_f
-13.0 °F - closed cup
flash_point_c
-25 °C - closed cup
ppe
Eyeshields, Faceshields, Gloves
Regulatory Information
危险化学品
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C J Kees-Jan Weststrate et al.
Nature communications, 11(1), 750-750 (2020-02-08)
Facile C-C bond formation is essential to the formation of long hydrocarbon chains in Fischer-Tropsch synthesis. Various chain growth mechanisms have been proposed previously, but spectroscopic identification of surface intermediates involved in C-C bond formation is scarce. We here show
Living polymerization of 2-butyne using a well-characterized tantalum catalyst.
Wallace KC, et al.
Organometallics, 8(3), 644-654 (1989)
A K Y Lam et al.
Physical chemistry chemical physics : PCCP, 14(7), 2417-2426 (2012-01-18)
Aromatic radicals form in a variety of reacting gas-phase systems, where their molecular weight growth reactions with unsaturated hydrocarbons are of considerable importance. We have investigated the ion-molecule reaction of the aromatic distonic N-methyl-pyridinium-4-yl (NMP) radical cation with 2-butyne (CH(3)C≡CCH(3))
Oleg G Salnikov et al.
Chemical science, 8(3), 2426-2430 (2017-04-30)
Mechanistic insight into the semihydrogenation of 1-butyne and 2-butyne on Cu nanoparticles supported on partially dehydroxylated silica (Cu/SiO
Aaron M Thomas et al.
The journal of physical chemistry letters, 9(12), 3340-3347 (2018-05-31)
The bimolecular gas phase reaction of ground-state silicon (Si; 3P) with dimethylacetylene (C4H6; X1A1g) was investigated under single collision conditions in a crossed molecular beams machine. Merged with electronic structure calculations, the data propose nonadiabatic reaction dynamics leading to the
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