2-Azaspiro[4.5]decane is primarily utilized in the field of organic synthesis and pharmaceutical research. Its unique spirocyclic structure makes it a valuable intermediate in the development of various bioactive compounds. It is often employed in the synthesis of complex molecules, particularly those targeting neurological and psychiatric disorders, due to its ability to mimic certain structural motifs found in natural products. Additionally, it serves as a building block for creating ligands and inhibitors that interact with specific enzymes or receptors, aiding in drug discovery and development. Its application also extends to material science, where it contributes to the design of novel polymers and functional materials with tailored properties.