4-Octyne - Wikipedia

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4-Octyne
Names

Other names Oct-4-yne Dipropylacetylene 1,2-Dipropylacetylene Dipropylethyne
Identifiers
CAS Number	1942-45-6
3D model (JSmol)	Interactive image
ChemSpider	15221
ECHA InfoCard	100.016.119
EC Number	217-730-2
PubChem CID	16029
CompTox Dashboard (EPA)	DTXSID6074338
InChI InChI=1S/C8H14/c1-3-5-7-8-6-4-2/h3-6H2,1-2H3 Key: GZTNBKQTTZSQNS-UHFFFAOYSA-N InChI=1/C8H14/c1-3-5-7-8-6-4-2/h3-6H2,1-2H3 Key: GZTNBKQTTZSQNS-UHFFFAOYAB
SMILES CCCC#CCCC
Properties
Chemical formula	C₈H₁₄
Molar mass	110.200 g·mol⁻¹
Density	0.751 g/mL
Boiling point	131–132 °C (268–270 °F; 404–405 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

4-Octyne, also known as dipropylethyne, is a type of alkyne with a triple bond at its fourth carbon (the '4-' indicates the location of the triple bond in the chain). Its formula is C₈H₁₄. Its density at 25 °C and otherwise stable conditions is 0.751 g/mL. The boiling point is 131–132 °C. The average molar mass is 110.20 g/mol.

4-Octyne forms with 5-decyne, 3-hexyne, and 2-butyne a group of symmetric alkynes.

External links

Sigma-Aldrich Co., 4-Octyne. Retrieved on 16 August 2016.

v t e Alkynes
Ethyne (C₂H₂) Propyne (C₃H₄) Butyne (C₄H₆) 1 2 Pentyne (C₅H₈) 1 2 Hexyne (C₆H₁₀) 1 2 3 Heptyne (C₇H₁₂) Octyne (C₈H₁₄) 2 4 Nonyne (C₉H₁₆) Decyne (C₁₀H₁₈) 1 5
Preparations	Cracking Dehydrogenation of alkane, alkene Alkylation of alkynyl anion Dehydrohalogenation of dihaloalkane Fritsch–Buttenberg–Wiechell rearrangement Corey–Fuchs reaction Seyferth–Gilbert homologation
Reactions	Deprotonation Hydrogenation Halogenation Hydration Hydroboration Hydrohalogenation Alkynylation Thiol-yne reaction Alkyne trimerisation Diels–Alder reaction Pauson–Khand reaction Azide-alkyne Huisgen cycloaddition Sonogashira coupling Cadiot–Chodkiewicz coupling Glaser coupling Favorskii reaction