Used as a key intermediate in the synthesis of pharmaceuticals and agrochemicals, particularly in the preparation of phosphorus-containing bioactive compounds. Its bromoaryl group enables cross-coupling reactions, making it valuable in constructing complex organic molecules. Commonly employed in Horner-Wadsworth-Emmons reactions to form conjugated alkenes, which are important in drug development and materials science. Also utilized in the design of kinase inhibitors and other targeted therapies due to its ability to mimic phosphate groups in metabolic pathways.