Used as a key intermediate in organic synthesis, particularly in the preparation of pharmaceuticals and bioactive molecules. Its vinyl group allows for further functionalization through reactions such as hydroboration, epoxidation, or Diels-Alder cycloadditions. The tert-butyl carbamate (Boc) protecting group stabilizes the pyrrolidine nitrogen during multi-step syntheses, enabling controlled deprotection under mild acidic conditions. Commonly employed in the development of protease inhibitors and other nitrogen-containing heterocyclic compounds relevant to medicinal chemistry. Also utilized in polymer chemistry as a functional monomer for specialty materials with tailored reactivity.