反应详情

A solution of 2,6-dinitrophenol (6.31 g, 27.4 mmol) in ethyl acetate (50 mL) was cooled to 0° C., 10% palladium activated carbon (250 mg) was added thereto, and the mixture was stirred under a hydrogen atmosphere for 5 hr. The reaction mixture was filtered through Celite (registered trademark) and the filtrate was concentrated under reduced pressure. The resulting residue was diluted with chloroform, anhydrous sodium sulfate was added thereto, and the mixture was stirred for 15 min. Anhydrous sodium sulfate was filtered off, followed by concentration under reduced pressure. The resulting residue was powdered with hexane and collected by filtration to afford 2-amino-6-nitrophenol as a brown amorphous substance (2.41 g).

1. filtrationThe reaction mixture was filtered through Celite (registered trademark)
2. concentrationthe filtrate was concentrated under reduced pressure
3. additionThe resulting residue was diluted with chloroform, anhydrous sodium sulfate
4. additionwas added
5. stirringthe mixture was stirred for 15 min
6. filtrationAnhydrous sodium sulfate was filtered off
7. concentrationfollowed by concentration under reduced pressure
8. filtrationcollected by filtration