In organic chemistry, the propargyl group is a functional group of 2-propynyl with the structure HC≡C−CH2−. It is an alkynyl group derived from propyne (HC≡C−CH3).
The term propargylic refers to a saturated position (sp3-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.[citation needed]
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.
- a 3-butynyl fragment, HC≡C−CH2CH2−, or substituted homologue.
