反应详情

To a solution of 3-hydroxybenzyl alcohol (27A) (12.41 g, 100 mmol) in ethanol (150 mL) was added aqueous NaOH (10 N, 10 mL), followed by 1-bromo-2-methoxyethane (27B) (13.9 g). The reaction mixture was heated to reflux overnight. Then the reaction mixture was allowed to cool to RT, and diluted with water. The mixture was subsequently extracted with CH2Cl2, and the combined organic phase was dried with anhydrous MgSO4 filtered, and concentrated in vacuum to give the product (27C) a yellow oil, which was used for the next reaction without further purification. 1H NMR (300 MHz, CDCl3): δ 1.82 (br, 1H), 3.44 (s, 3H), 3.74 (t, 2H, J=4.8 Hz), 4.12 (t, 2H, J=4.8 Hz), 4.65 (s, 2H), 6.84-6.95 (m, 3H), 7.22-7.26 (m, 1H). LCMS: purity >94%. ESI-MS: M/Z 183(M+H)+.

1. temperatureThe reaction mixture was heated
2. temperatureto reflux overnight
3. extractionThe mixture was subsequently extracted with CH2Cl2
4. dry with materialthe combined organic phase was dried with anhydrous MgSO4
5. filtrationfiltered
6. concentrationconcentrated in vacuum