反应详情

温度

75 °C

To a solution of 1-(4-bromophenyl)-2-(3-fluoro-4-methylthiophenyl)ethanone (1.50 g, 4.42 mmol) in a mixture of ethanol (12 ml) and water (6 ml) were added hydroxylamine hydrochloride (615 mg, 8.84 mmol) and anhydrous sodium acetate (715 mg, 8.84 mmol) at room temperature. The mixture was heated for 2 h at 75° C. and then diluted with diethyl ether (200 ml), washed with water (50 ml×2) and saturated sodium bicarbonate (50 ml×2), and dried over magnesium sulfate. Removal of solvent gave 1.56 g (˜100%) of 1-(4-bromophenyl)-2-(3-fluoro-4-methylthiophenyl)ethanone oxime as an orange solid.

1. washwashed with water (50 ml×2) and saturated sodium bicarbonate (50 ml×2)
2. dry with materialdried over magnesium sulfate
3. customRemoval of solvent