| Identification | Back Directory | [Name]
tert-Butyl 3-oxo-1-oxa-4,9-diazaspiro[5.5]undecane-9-carboxylate | [CAS]
1160247-07-3 | [Synonyms]
ert-Butyl 3-oxo-1-oxa-4,9-diazaspiro[5.5]undecane-9-carboxylate
tert-Butyl 3-oxo-1-oxa-4,9-diazaspiro[5.5]undecane-9-carboxylate
3-Oxo-1-oxa-4,9-diaza-spiro[5.5]undecane-9-carboxylic acid tert-butyl ester
3-oxo-1-Oxa-4,9-diazaspiro[5.5]undecane-9-carboxylic acid 1,1-dimethylethyl ester
1-Oxa-4,9-diazaspiro[5.5]undecane-9-carboxylic acid, 3-oxo-, 1,1-dimethylethyl ester | [Molecular Formula]
C13H22N2O4 | [MDL Number]
MFCD11227083 | [MOL File]
1160247-07-3.mol | [Molecular Weight]
270.32 |
| Hazard Information | Back Directory | [Synthesis]
Excellent regio- and stereoselectivity during nitrile addition to dienylium-Fe(CO)3 can be achieved with perchlorate salts, allowing the preparation of the 1-oxo- and 3-oxo-2-azaspiro[5.5]undecane ring systems[1]. tert-Butyl 3-oxo-1-oxa-4,9-diazaspiro[5.5]undecane-9-carboxylate has similar structure.
![preparation of the 1-oxo- and 3-oxo-2-azaspiro[5.5]undecane ring systems](/NewsImg/2026-02-25/6390763577263096178450245.png "preparation of the 1-oxo- and 3-oxo-2-azaspiro[5.5]undecane ring systems") | [References]
[1] Tricarbonylcyclohexadienyliumiron Complexes in the Synthesis of 2-Azaspiro[5.5]undecane System with Tunable Amide. J. Org. Chem. 1996, 61, 12, 3996–3998. DOI:10.1021/jo9520755
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