Used as an intermediate in organic synthesis, particularly in the preparation of bioactive molecules and pharmaceuticals. Its spirocyclic structure and bromoaryl functionality make it valuable for cross-coupling reactions, enabling the construction of complex aromatic and heterocyclic systems. Commonly employed in medicinal chemistry for building blocks in drug discovery, especially in the development of CNS-active agents and receptor modulators. Also utilized in materials science for designing novel organic semiconductors and functionalized polymers due to its rigid framework and derivatization potential.