256560
1-Pentyne
99%
Sinônimo(s):
Propylacetylene
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About This Item
Fórmula linear:
CH3CH2CH2C≡CH
Número CAS:
Peso molecular:
68.12
Beilstein:
1697133
Número CE:
Número MDL:
Código UNSPSC:
12352100
ID de substância PubChem:
NACRES:
NA.22
Produtos recomendados
pressão de vapor
6.8 psi ( 20 °C)
Ensaio
99%
forma
liquid
índice de refração
n20/D 1.385 (lit.)
pb
40 °C (lit.)
pf
−106-−105 °C (lit.)
densidade
0.691 g/mL at 25 °C (lit.)
cadeia de caracteres SMILES
CCCC#C
InChI
1S/C5H8/c1-3-5-4-2/h1H,4-5H2,2H3
chave InChI
IBXNCJKFFQIKKY-UHFFFAOYSA-N
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Descrição geral
Selective and non-selective hydrogenation of 1-pentyne catalyzed by silica-supported palladium has been studied by in situ X-ray absorption spectroscopy.
Aplicação
1-Pentyne has been used in preparation of:
- lithium acetylides, required for asymmetric synthesis of α,α-dibranched propargyl sulfinamides
- 7-hydroxy-10-methoxy-3H-naphtho[2.1-b]pyrans
acessório
Nº do produto
Descrição
Preços
Palavra indicadora
Danger
Frases de perigo
Declarações de precaução
Classificações de perigo
Flam. Liq. 2
Código de classe de armazenamento
3 - Flammable liquids
Classe de risco de água (WGK)
WGK 3
Ponto de fulgor (°F)
-4.0 °F - closed cup
Ponto de fulgor (°C)
-20 °C - closed cup
Equipamento de proteção individual
Eyeshields, Faceshields, Gloves
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Manish Rawat et al.
Journal of the American Chemical Society, 128(34), 11044-11053 (2006-08-24)
The carbene complex 5-(2,2-dimethyl-2H-chromene)methoxylmethylene chromium pentacarbonyl will undergo a benzannulation reaction with phenylacetylene, 1-pentyne, 3-hexyne, and trimethylsilylacetylene to give 7-hydroxy-10-methoxy-3H-naphtho[2.1-b]pyrans as the primary product. These compounds are difficult to obtain pure due to their sensitivity to air. If the benzannulation
Andrew W Patterson et al.
The Journal of organic chemistry, 71(18), 7110-7112 (2006-08-26)
Addition of lithium acetylides prepared from 1-pentyne, phenylacetylene, and trimethylsilylacetylene to diverse N-tert-butanesulfinyl ketimines affords a range of alpha,alpha-dibranched propargyl sulfinamides in generally good yields (up to 87%) and with high diastereoselectivities (up to >99:1). Acidic cleavage of the tert-butanesulfinyl
Min Wei Tew et al.
Physical chemistry chemical physics : PCCP, 14(16), 5761-5768 (2012-03-17)
The catalytically active phase of silica-supported palladium catalysts in the selective and non-selective hydrogenation of 1-pentyne was determined using in situ X-ray absorption spectroscopy at the Pd K and L(3) edges. Upon exposure to alkyne, a palladium carbide-like phase rapidly
Quan-De Wang et al.
International journal of molecular sciences, 20(13) (2019-07-03)
Hydrogen atom abstraction from propargyl C-H sites of alkynes plays a critical role in determining the reactivity of alkyne molecules and understanding the formation of soot precursors. This work reports a systematic theoretical study on the reaction mechanisms and rate
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