Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of nicotinic acetylcholine receptor modulators. Its structure allows for selective binding and modification in neuroactive compounds. Also employed in agrochemicals for the creation of novel pesticides due to its ability to enhance bioavailability and target specificity. The ethynyl group enables coupling reactions, making it valuable in medicinal chemistry for building complex molecules through click chemistry or palladium-catalyzed reactions.