propiolatebased
Propiolate‑based compounds are organometallics, reagents or polymers that incorporate the propiolate functional group, an alkynyl carboxylate (RC≡C–COO–). The group is derived from propiolic acid (ethynylacetic acid) and is characterized by a carbon–carbon triple bond adjacent to a carbonyl‑oxygen framework. This arrangement confers a distinct electronic conjugation that increases the acidity of the acetylenic proton and improves leaving‑group ability, making propiolates useful as electrophiles in organic synthesis.
A simple prototypical example is ethyl propiolate, which undergoes nucleophilic addition reactions with water, alcohols or
Beyond small molecules, propiolate groups have been incorporated into polymer backbones to produce responsive or conductive
In medicinal chemistry, propiolate derivatives are employed as ligands in the synthesis of peptidomimetics, as bioorthogonal