Hydrogen Peroxide → 1-(2-Hydroxy-2-methylpropoxy)-2,2,6,6-tetramethylpiperidin-4-one
Reaktionsgleichung
OO.[OH:3][N:4]1[C:9]([CH3:11])([CH3:10])[CH2:8][C:7](=[O:12])[CH2:6][C:5]1([CH3:14])[CH3:13].S([O-])([O-])=O.[Na+].[Na+].[C:21]([OH:25])([CH3:24])([CH3:23])[CH3:22]>>[OH:25][C:21]([CH3:24])([CH3:23])[CH2:22][O:3][N:4]1[C:9]([CH3:10])([CH3:11])[CH2:8][C:7](=[O:12])[CH2:6][C:5]1([CH3:14])[CH3:13]Komponenten
5
Versuchsvorschrift
Aqueous hydrogen peroxide is added to a mixture of 1-oxyl-2,2,6,6-tetramethylpiperidin-4-one and ferrous chloride in tert-butyl alcohol at 30-60° C. Excess peroxide is decomposed with aqueous sodium sulfite. The organic layer is concentrated and the residue is purified by flash chromatography to afford the desired 1-(2-hydroxy-2-methylpropoxy)-2,2,6,6-tetramethyl-piperidin-4-one.
Aufarbeitung
- concentrationThe organic layer is concentrated
- customthe residue is purified by flash chromatography
Quellen und Nachweise
- ORD-Eintrag
- ord-8fc3491a2e5a4c1cafac998c1e415ecb
- Quelldatensatz
- uspto-grants-2002_04
- Patentnummer
- US06376584B1
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