反应详情

1-[2-[(2,6-Dichloro-3-methylphenyl)amino]phenyl]ethanone (0.8 g, 2.7 mmol) and hydroxylamine hydrochloride (0.8 g, 10.8 mmol) are dissolved in 15 ml of pyridine under argon at room temperature for 12 hours. The pyridine is evaporated, and the residue partitioned between methylene chloride and water. The organic layer is washed twice with 100 ml of water and dried over magnesium sulfate. The solution is concentrated on the rotovap and passed through a silica gel pad which is then eluted with methylene chloride. The solvent is evaporated and 1-[2-[(2,6-dichloro-3-methylphenyl)amino]phenyl]ethanone oxime is recrystallized from H2O/MeOH. Yield 0.2 g (24%); mp 116°-118° C.

1. customThe pyridine is evaporated
2. customthe residue partitioned between methylene chloride and water
3. washThe organic layer is washed twice with 100 ml of water
4. dry with materialdried over magnesium sulfate
5. concentrationThe solution is concentrated on the rotovap
6. washis then eluted with methylene chloride
7. customThe solvent is evaporated
8. custom1-[2-[(2,6-dichloro-3-methylphenyl)amino]phenyl]ethanone oxime is recrystallized from H2O/MeOH