Alle Fotos(1)
Wichtige Dokumente
256560
1-Pentin
99%
Synonym(e):
Propylacetylene
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Alle Fotos(1)
About This Item
Lineare Formel:
CH3CH2CH2C≡CH
CAS-Nummer:
Molekulargewicht:
68.12
Beilstein:
1697133
EG-Nummer:
MDL-Nummer:
UNSPSC-Code:
12352100
PubChem Substanz-ID:
NACRES:
NA.22
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Dampfdruck
6.8 psi ( 20 °C)
Qualitätsniveau
Assay
99%
Form
liquid
Brechungsindex
n20/D 1.385 (lit.)
bp
40 °C (lit.)
mp (Schmelzpunkt)
−106-−105 °C (lit.)
Dichte
0.691 g/mL at 25 °C (lit.)
SMILES String
CCCC#C
InChI
1S/C5H8/c1-3-5-4-2/h1H,4-5H2,2H3
InChIKey
IBXNCJKFFQIKKY-UHFFFAOYSA-N
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Allgemeine Beschreibung
Selective and non-selective hydrogenation of 1-pentyne catalyzed by silica-supported palladium has been studied by in situ X-ray absorption spectroscopy.
Anwendung
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
Zubehör
Produkt-Nr.
Beschreibung
Preisangaben
Signalwort
Danger
H-Sätze
Gefahreneinstufungen
Flam. Liq. 2
Lagerklassenschlüssel
3 - Flammable liquids
WGK
WGK 3
Flammpunkt (°F)
-4.0 °F - closed cup
Flammpunkt (°C)
-20 °C - closed cup
Persönliche Schutzausrüstung
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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