反应详情

To a solution of (4-benzyloxy-3-fluoro-phenyl)-acetic acid methyl ester (7.1 g, 25.7 mmol) in ether (150 mL), was LAH (1.07 g, 28.3 mmol) added portionwise at 0° C. The reaction mixture stirred for 2 hours at the same temperature. The reaction was quenched with H2O (5 mL) at 0° C. The solid material was filtrated off and washed with ether (50 mL). The ether was dried over MgSO4 and concentrated under vacuum to afford the desired compound (5.2 g, 82%) as a white solid. The crude compound was used for the next step without further purification. 1H NMR (400 Mz, DMSO-d6) δ 7.34-7.48 (m, 5H), 7.09-7.17 (m, 2H), 6.96-6.98 (m, 1H), 5.17 (s, 2H), 4.66 (s, 1H), 3.60 (b, 2H), 2.68 (m, 2H). LCMS 246.3 [MH+].

1. additionadded portionwise at 0° C
2. customThe reaction was quenched with H2O (5 mL) at 0° C
3. filtrationThe solid material was filtrated off
4. washwashed with ether (50 mL)
5. dry with materialThe ether was dried over MgSO4
6. concentrationconcentrated under vacuum