Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of kinase inhibitors for cancer treatment. Its structure allows for selective functionalization, making it valuable in creating biologically active molecules. Commonly employed in cross-coupling reactions such as Suzuki or Buchwald-Hartwig aminations to build complex drug-like compounds. Also utilized in agrochemical research for designing novel pesticides due to its electron-withdrawing sulfonyl group and halogen handle for further modification.