Used as a key intermediate in the synthesis of pharmaceuticals and agrochemicals, particularly in the development of herbicides and fungicides. Its ethynyl group enables coupling reactions in organic synthesis, making it valuable in creating complex molecules. Also employed in materials science for constructing conjugated systems in organic electronics due to its ability to participate in Sonogashira and other palladium-catalyzed cross-coupling reactions. The trimethylsilyl group acts as a protective moiety that can be easily removed to generate reactive acetylenic bonds.