[OH:1][CH:2]1[CH2:7][CH2:6][CH2:5][C:4](=O)[C:3]1([CH3:10])[CH3:9].Cl.[NH2:12][OH:13].C(=O)([O-])[O-].[Na+].[Na+]>CCO.O>[OH:1][CH:2]1[CH2:7][CH2:6][CH2:5][C:4](=[N:12][OH:13])[C:3]1([CH3:10])[CH3:9]A mixture of 3-hydroxy-2,2-dimethylcyclohexanone (1.6 g, crude), hydroxylamine hydrochloride (2.98 g, 42.9 mmol) and sodium carbonate (4.54 g, 42.9 mmol) in EtOH (30 mL) and water (3 mL) was stirred at 25° C. for 6 h. The organic solvents were removed under reduced pressure and the residue was extracted with ethyl acetate (2×200 mL). The combined organic layers were washed with brine, dried over anhydrous sodium sulfate and concentrated to afford the title compound (1.8 g, crude). MS (ESI) m/z 158.2 [M+H]+.
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