Used as an intermediate in organic synthesis, particularly in the preparation of pharmaceuticals and agrochemicals. It serves as a building block for creating complex molecules due to its reactive bromine and ester functional groups. Commonly employed in cross-coupling reactions, such as Suzuki or Heck reactions, to form carbon-carbon bonds. Also utilized in the development of fine chemicals and specialty materials. Its tert-butyl group provides steric hindrance, which can be advantageous in selective chemical transformations.