{{Short description|Chemical group (–CH2C≡CH)}} thumb|right|Chemical structure of the propargyl group.
In organic chemistry, the '''propargyl group''' is a functional group of 2-propynyl with the structure {{chem2|HC\tC\sCH2\s}}. It is an alkynyl group derived from propyne ({{chem2|HC\tC\sCH3}}).
The term '''propargylic''' refers to a saturated position (''sp''<sup>3</sup>-hybridized) on a molecular framework next to an alkynyl group. The name comes from mix of ''propene'' and ''argentum'', which refers to the typical reaction of the terminal alkynes with silver salts.{{cn|date=January 2026}}
The term '''homopropargylic''' designates in the same manner
* a saturated position on a molecular framework next to a propargylic group and thus two bonds from an alkyne moiety.<ref>{{cite journal|last1=Ferreira|first1=Franck|last2=Denichoux|first2=Aurélien|last3=Chemla|first3=Fabrice|last4=Bejjani|first4=Joseph|title=Highly Diastereoselective Syntheses of Propargylic Acid and Homopropargylic Systems|journal=Synlett|date=2004|issue=12|pages=2051–2065|doi=10.1055/s-2004-832816}}</ref> * a 3-butynyl fragment, {{chem2|HC\tC\sCH2CH2\s}}, or substituted homologue.
==See also== * Alkenyl groups ** Allyl ** Vinyl group * Ethynyl * Propargyl chloride * Propargyl alcohol * Propargyl bromide * Propiolic acid
==References== {{Reflist}}
{{Commonscat}}
Category:Alkynyl groups Category:Propargyl compounds Category:Functional groups