反应详情

温度

-20 °C

To a mixture of LiAlH4 (2.42 g, 64 mmol) in THF (40 mL) at −40° C. under argon, a solution of methyl 4,5-dichloro-2-methoxybenzoate (6 g, 26 mmol) in THF (50 mL) was added dropwise. The reaction mixture was stirred at −5° C. to 5° C. for 1 h. The mixture was cooled to −20° C. and then water (2 mL) and NaOH (15%) aqueous were added. The resulting mixture was stirred for 15 min. The solid was filtered, and the cake rinsed with ethyl acetate. The combined filtrate was dried over Na2SO4 and concentrated in vacuo to afford the crude product (4.6 g).

1. stirringThe resulting mixture was stirred for 15 min
2. filtrationThe solid was filtered
3. washthe cake rinsed with ethyl acetate
4. dry with materialThe combined filtrate was dried over Na2SO4
5. concentrationconcentrated in vacuo