反应详情

To a solution of 2-(4-benzyloxy-3-fluoro-phenyl)-ethanol (9.2 g, 37.4 mmol) in CH2Cl2 (150 mL) and TBDMS-Cl (5.6 g, 37.4 mmol), was added Et3N (5.2 mmol, 37.4 mmol) portionwise at 0° C. The reaction mixture was warmed to room temperature and stirred for 2 hours at the same temperature. The reaction was washed with H2O (150 mL). The CH2Cl2 was dried over MgSO4 and concentrated under vacuum. To a solution of the residue in MeOH (100 mL), was Pd/C (150 mg) added. The reaction was stirred under H2 (1 atm) for 5 hours. The solid material was filtrated off and the filtrate was concentrated under vacuum to afford the desired compound (8.9 g, 88.3%) as a grayish solid. The crude compound was used for the next step without further purification. 1H NMR (400 MHz, DMSO-d6) δ 9.53 (s, 1H), 6.99˜6.96 (m, 1H), 6.83˜6.81 (m, 2H), 3.70 (t, 2H), 2.63 (t, 2H), 0.83 (s, 9H), 0.01 (s, 6H).

1. washThe reaction was washed with H2O (150 mL)
2. dry with materialThe CH2Cl2 was dried over MgSO4
3. concentrationconcentrated under vacuum
4. additionadded
5. stirringThe reaction was stirred under H2 (1 atm) for 5 hours
6. filtrationThe solid material was filtrated off
7. concentrationthe filtrate was concentrated under vacuum