反应详情

温度

2.5 °C

1-(4′-Fluorophenyl)-1,3-dihydroisobenzofuran-5-carbaldehyde (5.96 g) was dissolved in toluene (30 ml) and triethylamine (2.75 g) was flown in. Thereto was added hydroxylamine hydrochloride (1.88 g) and the mixture was reacted at 80-90° C. for 1 hr. Hot water (30 ml) was added to the reaction mixture and the mixture was partitioned while hot at 90° C. The organic layer was cooled to 0-5° C. and the resulting crystals were collected by filtration to give the title compound (5.02 g, yield:79.2%).

1. customthe mixture was reacted at 80-90° C. for 1 hr
2. customthe mixture was partitioned while hot at 90° C
3. filtrationthe resulting crystals were collected by filtration