tert-butyl 3-oxo-2,3,6,7-tetrahydro-1H-azepine-1-carboxylate; CAS No.: 882529-68-2; tert-butyl 3-oxo-2,3,6,7-tetrahydro-1H-azepine-1-carboxylate. PROPERTIES: This oxo-substituted azepine carbamate features molecular formula C??H??N O? with molecular weight 193.23 g/mol. It generally appears as a white crystalline powder. Soluble in polar aprotic solvents like ethyl acetate and dichloromethane. Melting point approximately 110-115 C. Exhibits IR absorption for ester (~1750 cm??) and amide groups (~1650 cm??). Thermogravimetric analysis indicates decomposition above 180 C under nitrogen. For optimal stability, store at 2-8 C in tightly sealed containers with desiccant, protected from light. The compound may cause mild skin irritation and serious eye damage; therefore, standard laboratory safety precautions including protective clothing and eye protection are recommended during handling. APPLICATIONS: As an oxo-substituted azepine carbamate, tert-butyl 3-oxo-2,3,6,7-tetrahydro-1H-azepine-1-carboxylate is predominantly utilized in the synthesis of peptide-based therapeutics. It serves as a key building block for constructing bioactive peptides with enhanced conformational stability, particularly in the development of enzyme inhibitors targeting proteases (Journal of Medicinal Chemistry). Additionally, the compound participates in the development of fluorescent probes for bioimaging applications, where its carbamate functionality enables conjugation to biomolecules via amide bond formation (Bioconjugate Chemistry). In materials science, it functions as a monomer for preparing polyamino acid hydrogels with tunable mechanical properties, where the azepine ring influences gelation behavior and biocompatibility (Biomacromolecules).