1,5-Dioxa-9-azaspiro[5.5]undecane is primarily utilized as a versatile building block in organic synthesis, particularly in the development of complex molecular structures. Its spirocyclic framework makes it valuable for creating compounds with unique spatial arrangements, which can be applied in pharmaceutical research for designing new drugs. It is also employed in the synthesis of specialty chemicals, where its structural features contribute to the development of materials with specific properties, such as enhanced stability or reactivity. Additionally, this compound finds use in the field of agrochemicals, aiding in the creation of novel pesticides or herbicides with improved efficacy. Its application extends to coordination chemistry, where it can act as a ligand to form metal complexes for catalytic or material science purposes.