Used as a key intermediate in organic synthesis, particularly in the preparation of pharmaceuticals and agrochemicals. It serves as a heterocyclic building block for constructing complex molecules due to its reactive oxazoline core and electrophilic exocyclic double bond. Commonly employed in cycloaddition reactions and nucleophilic ring-opening processes to form functionalized amides and esters. Its ethoxymethylene group allows for further derivatization, making it valuable in the development of bioactive compounds and specialty polymers.