1-Hexyne

1-Hexyne (n-butylacetylene) is a hydrocarbon consisting of a straight six-carbon chain having a terminal alkyne. Its molecular formula is C6H10. It is a liquid at room temperature that is colorless or pale yellow in appearance.[1]

1-Hexyne
Names
Preferred IUPAC name
Hex-1-yne
Other names
n-Butylacetylene
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.010.671
EC Number
  • 211-736-9
UNII
  • InChI=1S/C6H10/c1-3-5-6-4-2/h1H,4-6H2,2H3
    Key: CGHIBGNXEGJPQZ-UHFFFAOYSA-N
  • CCCCC#C
Properties
C6H10
Molar mass 82.146 g·mol−1
Appearance Colorless or Pale Yellow liquid
Density 0.72 g/cm3
Melting point −132 °C (−206 °F; 141 K)
Boiling point 71 to 72 °C (160 to 162 °F; 344 to 345 K)
0.36 g/L
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
 Irritant, Flammable, Health Hazard
GHS labelling:
Danger
H225, H304, H315, H319, H335
P210, P233, P240, P241, P242, P243, P261, P264, P271, P280, P301+P310, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P312, P321, P331, P332+P313, P337+P313, P362, P370+P378, P403+P233, P403+P235, P405, P501
Flash point −20 °C (−4 °F; 253 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Reactions

1-Hexyne also reacts with diethyl fumarate to produce n-hexylsuccinic acid.[2]

Uses

1-Hexyne is used for the production of complex molecules in the agrochemical, pharmaceutical, and perfumery industries. It is a component in cycloaddition reactions that produce substituted azides and isoindolinones.[1]

See also

References
  1. "Hexyne, 1-Hexyne, Butylacetylene, Hex-1-yne, 693-02-7, C6H10O, Mumbai, India". www.jaydevchemicals.com. Retrieved 2021-02-27.
  2. Hogsed, M. J.; Lindsey, R. V. (1953-10-01). "The Reaction of 1-Hexyne and Diethyl Fumarate". Journal of the American Chemical Society. 75 (19): 4846–4847. doi:10.1021/ja01115a517. ISSN 0002-7863.
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