Acetylenic

In organic chemistry, the term acetylenic designates
*A doubly unsaturated position (''sp''-hybridized) on a molecular framework, for instance in an alkyne such as acetylene;
*An ethynyl fragment, HC$\equiv$C–, or substituted homologue.

See also

* Allylic, Allylic/Homoallylic
* Benzyl#Benzylic position, Benzylic
* Propargylic, Propargylic/Homopropargylic
* Vinylic

Organic chemistry

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