反应详情

To a suspension of 3-hydroxy-2-(hydroxymethyl)-2-methylpropanoic acid (10.06 g, 75 mmol) in MeOH was dropped 2.0 M solution of (trimethylsilyl)diazomethane in diethyl ether and stirred at room temperature overnight. After solvent was concentrated under reduced pressure, the reaction was quenched with saturated NaHCO3 solution and extracted with CH2Cl2. Extracts were dried over MgSO4 and concentrated under reduced pressure to afford methyl 3-hydroxy-2-(hydroxymethyl)-2-methylpropanoate as an oil (3.79 g, 34%). 1H NMR (300 MHz, CDCl3) δ 3.81 (d, 2H), 3.67 (s, 3H), 3.60 (d, 2H), 2.89 (br, 2H), 0.96 (s, 3H).

1. concentrationAfter solvent was concentrated under reduced pressure
2. customthe reaction was quenched with saturated NaHCO3 solution
3. extractionextracted with CH2Cl2
4. dry with materialExtracts were dried over MgSO4
5. concentrationconcentrated under reduced pressure