Used as a reactive intermediate in organic synthesis, particularly in the production of pharmaceuticals and fine chemicals. As a beta-keto allyl ester, it features a cyclopentanone ring with geminal methyl and ester groups at the alpha position, enabling versatile transformations such as enolate formation, Claisen condensation, hydrolysis followed by decarboxylation, and allyl group manipulations. These properties make it suitable for building complex molecular scaffolds with high specificity. The ketone functionality supports aldol and related reactions, while the ester allows selective modifications. Commonly applied in multi-step syntheses for pharmaceutical intermediates and specialty materials.