Used as a key intermediate in organic synthesis, particularly in the development of pharmaceuticals and agrochemicals. Its structure allows for selective transformations in cross-coupling reactions, making it valuable in the construction of complex molecules. Commonly employed in the synthesis of biaryl compounds via palladium-catalyzed reactions. Also utilized in the preparation of functionalized phosphine ligands for catalysis. Its bromo and phosphine oxide groups offer dual reactivity, enabling sequential modifications in multi-step synthetic routes.