Methyl 4-[(tert-butyldimethylsilyl)oxy]-1-methylcyclohexane-1-carboxylate → Methyl 4-hydroxy-1-methylcyclohexane-1-carboxylate
反応式
[Si]([O:8][CH:9]1[CH2:14][CH2:13][C:12]([CH3:19])([C:15]([O:17][CH3:18])=[O:16])[CH2:11][CH2:10]1)(C(C)(C)C)(C)C>O1CCCC1>[OH:8][CH:9]1[CH2:10][CH2:11][C:12]([CH3:19])([C:15]([O:17][CH3:18])=[O:16])[CH2:13][CH2:14]1参加物
3
実験手順
To a solution of methyl 4-[(tert-butyldimethylsilyl)oxy]-1-methylcyclohexane-1-carboxylate (10.0 g, 34.91 mmol, 1.00 equiv) in 100 mL of tetrahydrofuran was added TBAF-3H2O (16.5 g, 52.30 mmol, 1.50 equiv) at room temperature and stirred for 5 h. Then the reaction was quenched with water, extracted with 3×100 mL of ethyl acetate. The organic layers were combined, washed with brine, dried over sodium sulfate and concentrated under vacuum. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (1/2) to give 5.8 g (96%) of methyl 4-hydroxy-1-methylcyclohexane-1-carboxylate as a light yellow oil.