9-Azabicyclo[3.3.1]nonanen-oxyl

• CAT Number: L004516
• CAS Number: 31785-68-9
• Molecular Formula: C8H14NO
• Molecular Weight: 140.20
• Purity: ≥95%
• IUPAC Name: 9-hydroxy-9-azabicyclo[3.3.1]nonane
• InChI: InChI=1S/C8H15NO/c10-9-7-3-1-4-8(9)6-2-5-7/h7-8,10H,1-6H2
• InChIKey: WUXMSJQQHBZNIK-UHFFFAOYSA-N
• SMILES: C1CC2CCCC(C1)N2O

9-Azabicyclo[3.3.1]nonanen-oxyl（Cat No.:L004516）, often referred to as ABNO, is a stable nitroxyl radical derived from a bicyclic amine structure. It features a nitrogen-centered radical within a rigid, bridged bicyclic framework, enhancing its stability and reactivity. ABNO is widely used as an organocatalyst, particularly in oxidation reactions, including selective alcohol oxidations under mild conditions. Its steric and electronic properties make it a valuable alternative to TEMPO in various synthetic protocols. ABNO’s utility in green chemistry and fine chemical synthesis continues to expand due to its efficiency and selectivity.