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2-Pentyne
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Chemical compound (CH3CH2C≡CCH3)
changed changed 477215251 2-pentyne.svg 180px Skeletal formula of 2-pentyne 2-pentyne-3D-balls.png 160px Ball-and-stick model of 2-pentyne Pent-2-yne Ethylmethylacetylene, 1-Ethyl-2-methylacetylene propyl acetylene correct chemspider 11807 C(#CCC)C correct chemspider 1S/C5H8/c1-3-5-4-2/h3H2,1-2H3 correct chemspider NKTDTMONXHODTI-UHFFFAOYSA-N correct CAS 627-21-4 correct FDA 57NG6HKI9D CC#CCC 1/C5H8/c1-3-5-4-2/h3H2,1-2H3 12310
C5H8 68.12 0.71 g/mL −109 56 to 57 °C
Flammable Liquid
2-Pentyne, an organic compound with the formula CH3CH2C≡CCH3 and is an internal alkyne. It is an isomer of 1-pentyne, a terminal alkyne.
thumb|left|100px|1-Pentyneleft
Synthesis
2-Pentyne can be synthesized by the rearrangement 1-pentyne in a solution of ethanolic potassium hydroxide or NaNH2/NH3.Victor von Richter and Hans Meerwein Organic Chemistry: Chemistry of the aliphatic series Vol. I: Smith's 3rd American Ed. 1916 P. Blakiston's Sons & Co. Philadelphia 89 https://books.google.com/books?id=UWlZAAAAYAAJ&q=dimethylacetylene+preparation&pg=PA89
References
External links
NIST Chemistry WebBook page for 2-pentyne
Category:Alkynes