ChemicalBook CAS DataBase List tert-butyl 6-oxo-2-azaspiro[4.4]nonane-2-carboxylate(WX101410)

tert-butyl 6-oxo-2-azaspiro[4.4]nonane-2-carboxylate(WX101410) synthesis

3synthesis methods

Product Name:tert-butyl 6-oxo-2-azaspiro[4.4]nonane-2-carboxylate(WX101410)
CAS Number:1319716-43-2
Molecular formula:C13H21NO3
Molecular Weight:239.31

1-Pyrrolidinecarboxylic acid, 2-oxo-3,3-di-2-propen-1-yl-, 1,1-dimethylethyl ester

1319716-35-2
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tert-butyl 6-oxo-2-azaspiro[4.4]nonane-2-carboxylate(WX101410)

1319716-43-2
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Yield:-

Steps:

Multi-step reaction with 4 steps
1.1: Grubbs catalyst first generation / dichloromethane / 20 °C
2.1: tert.-butylhydroperoxide; palladium 10% on activated carbon; potassium carbonate / dichloromethane / 0 - 20 °C
3.1: palladium 10% on activated carbon; hydrogen / ethanol; ethyl acetate
4.1: dimethylsulfide borane complex / tetrahydrofuran / 40 °C
4.3: 0 - 20 °C / Molecular sieve

References:

Kang, Fu-An;Sui, Zhihua [Tetrahedron Letters,2011,vol. 52,# 32,p. 4204 - 4206]

2-Azaspiro[4.4]non-7-ene-2-carboxylic acid, 1-oxo-, 1,1-dimethylethyl ester

1319716-36-3
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1319716-43-2
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References

85909-08-6 Synthesis

85909-08-6
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1319716-43-2
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References

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