Used as a key intermediate in organic synthesis, particularly in the preparation of functionalized cyclohexene derivatives through cross-coupling reactions. Its ethynyl group enables Sonogashira and other palladium-catalyzed couplings, allowing the construction of conjugated enyne systems important in pharmaceuticals and agrochemicals. The triethylsilyl group acts as a protecting group for the alkyne, enhancing stability and selectivity during multi-step syntheses. Also employed in materials science for designing organic semiconductors and luminescent compounds due to its ability to modulate electronic properties.