反应详情

Methyl 3-(4-chloromethylphenyl)isoxazole-4-carboxylate (7.59 g, 30.16 mmol) was dissolved in THF-water (2:1, 225 ml), lithium hydroxide monohydrate (5.06 g, 120.6 mmol) was added, and the mixture was stirred at room temperature for 6 hours. THF was evaporated under reduced pressure, 2N hydrochloric acid was added to weakly acidify the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure to give the title compound (7.14 g, 100%).

1. customTHF was evaporated under reduced pressure, 2N hydrochloric acid
2. additionwas added
3. extractionthe mixture was extracted with ethyl acetate
4. washThe organic layer was washed with saturated brine
5. dry with materialdried over anhydrous sodium sulfate
6. customThe solvent was evaporated under reduced pressure