Misplaced Pages

2-Pentyne

Article snapshot taken from Wikipedia with creative commons attribution-sharealike license. Give it a read and then ask your questions in the chat. We can research this topic together.
2-Pentyne
Skeletal formula of 2-pentyne
Ball-and-stick model of 2-pentyne
Names
Preferred IUPAC name Pent-2-yne
Other names Ethylmethylacetylene, 1-Ethyl-2-methylacetylene propyl acetylene
Identifiers
CAS Number
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.009.991 Edit this at Wikidata
PubChem CID
UNII
CompTox Dashboard (EPA)
InChI
  • InChI=1S/C5H8/c1-3-5-4-2/h3H2,1-2H3Key: NKTDTMONXHODTI-UHFFFAOYSA-N
  • InChI=1/C5H8/c1-3-5-4-2/h3H2,1-2H3
SMILES
  • CC#CCC
  • C(#CCC)C
Properties
Chemical formula C5H8
Molar mass 68.12
Density 0.71 g/mL
Melting point −109 °C (−164 °F; 164 K)
Boiling point 56 to 57 °C
Hazards
Occupational safety and health (OHS/OSH):
Main hazards Flammable Liquid
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). ☒N verify (what is  ?) Infobox references
Chemical compound

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.

1-Pentyne

Synthesis

2-Pentyne can be synthesized by the rearrangement 1-pentyne in a solution of ethanolic potassium hydroxide or NaNH2/NH3.

References

  1. Victor von Richter and Hans Meerwein (1916). Organic Chemistry: Chemistry of the aliphatic series Vol. I: Smith's 3rd American Ed. Philadelphia: P. Blakiston's Sons & Co. p. 89.

External links

Alkynes
Preparations
Reactions


Stub icon

This article about a hydrocarbon is a stub. You can help Misplaced Pages by expanding it.

Categories: