Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of agrochemicals and active pharmaceutical ingredients (APIs). Its structure allows for selective functionalization, making it valuable in constructing complex heterocyclic compounds. Commonly employed in cross-coupling reactions such as Suzuki and Heck reactions to form carbon-carbon bonds in drug discovery. Also utilized in the preparation of kinase inhibitors and other biologically active molecules due to the enhanced reactivity imparted by the N-oxide group.