[F:1][C:2]([F:23])([F:22])[C:3]1[CH:21]=[CH:20][C:6]([CH2:7][O:8][N:9]2C(=O)C3C(=CC=CC=3)C2=O)=[CH:5][CH:4]=1.O.NN>C(O)C>[F:1][C:2]([F:22])([F:23])[C:3]1[CH:21]=[CH:20][C:6]([CH2:7][O:8][NH2:9])=[CH:5][CH:4]=1To a stirring solution of 2-((4-(trifluoromethyl)benzyl)oxy)isoindoline-1,3-dione (9 g, 28.0 mmol) in ethanol (90 mL) was added hydrazine hydrate (1.543 g, 30.8 mmol) at RT. Reaction mixture was stirred for 16 h. Reaction mixture was filtered and filtrate was diluted with water and extracted with EtOAC. The organic layer was separated and distilled out to get the titled compound in 68% yield.
Wird geladen…