反应详情

温度

65 °C

To a solution of 3-benzyloxy-5-bromo-nitrobenzene (27.0 g, 87.60 mmol) in THF (800.0 mL) was added SnCl2.2H2O (99.0 g, 438.30 mmol) and the resulting reaction mixture was heated to reflux at 65° C. for 2 h. The reaction mass was then cooled to 0-5° C. and basified with a saturated solution of NaHCO3 till pH 8 and then extracted with EtOAc (3×1.0 L). The combined organics was dried over anhydrous Na2SO4 and concentrated under reduced pressure. The residue thus obtained (23.60 g, 95%) was carried forward to the next step without further purification.

1. customthe resulting reaction mixture
2. temperaturewas heated
3. temperatureThe reaction mass was then cooled to 0-5° C.
4. extractionextracted with EtOAc (3×1.0 L)
5. dry with materialThe combined organics was dried over anhydrous Na2SO4
6. concentrationconcentrated under reduced pressure
7. customThe residue thus obtained (23.60 g, 95%)
8. customwas carried forward to the next step without further purification