Used as a key intermediate in organic synthesis, particularly in the preparation of pharmaceuticals and agrochemicals. Its α,β-unsaturated ester structure with a bromine substituent makes it valuable in cross-coupling reactions, such as Suzuki or Heck reactions, enabling the formation of carbon-carbon bonds. It is also employed in the synthesis of complex natural products and bioactive molecules due to its reactivity as a Michael acceptor. The compound's versatility allows for functionalization at multiple sites, facilitating the construction of diverse molecular frameworks in medicinal chemistry research.