Used as a key intermediate in organic synthesis, particularly in the preparation of functionalized tetrazoles through [3+2] cycloaddition reactions with azides. It serves as a building block in the development of pharmaceuticals and agrochemicals due to its ability to introduce nitrile and heterocyclic functionalities. Also employed in materials science for synthesizing conjugated organic compounds used in nonlinear optical materials and semiconducting polymers. Its reactivity allows for efficient carbon-chain extension in fine chemical synthesis.