Used as an intermediate in organic synthesis, particularly in pharmaceutical and agrochemical manufacturing. The iodine atom serves as a good leaving group, enabling coupling reactions such as Suzuki or Stille cross-couplings. The ester group can be hydrolyzed to the corresponding carboxylic acid or reduced to an alcohol, allowing further functionalization. Commonly employed in the preparation of heterocyclic compounds and bioactive molecules where a five-carbon spacer with a terminal reactive site is needed. Its tert-butyl ester group offers stability under various reaction conditions and can be deprotected under acidic conditions when required.