Author: Prof. Dr. med. Peter Altmeyer

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Last updated on: 29.10.2020

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Acetylene Hydrocarbons; Acetylenes; Alkynes

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Alkynes (formerly acetylenes and acetylene hydrocarbons; international designation: alkyne) designate chemical compounds from the group of unsaturated aliphatic hydrocarbons. Alkyne have at least one carbon-carbon triple bond (R-C≡C-R) at any position.

General information
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Alkyne with a single triple bond form a homologous series with the general molecular formula CnH2n-2 (with n = 2, 3, 4, ...). These include ethyne (C2H2); propyne (C3H4); 1-butyne (C4H6); 1-pentyne (C5H8); 1-hexylene (C6H10); 1-heptyne (C7H12); 1-octyne (C8H14); 1-nonyne (C9H16); 1-decyne (C10H18).

Compounds with 2 or >2 C-C triple bonds are called polyins.


Last updated on: 29.10.2020