[N+:1]([C:4]1[CH:19]=[CH:18][C:7]([O:8][C:9]2[CH:14]=[CH:13][C:12]([C:15](=[O:17])[CH3:16])=[CH:11][CH:10]=2)=[CH:6][CH:5]=1)([O-])=O>CO.[Pd]>[NH2:1][C:4]1[CH:5]=[CH:6][C:7]([O:8][C:9]2[CH:14]=[CH:13][C:12]([C:15](=[O:17])[CH3:16])=[CH:11][CH:10]=2)=[CH:18][CH:19]=1To a solution of 1-(4-(4-nitrophenoxy)phenyl)ethanone (9.0 g, 35.02 mmol), in methanol (50 mL) under nitrogen atmosphere, was added a solution of 10% palladium on charcoal (1.80 g, 20% by weight) in methanol (20 mL). The reaction mixture was evacuated and purged with hydrogen balloon and stirred at r.t for 6 h. After the completion of reaction as confirmed by TLC, the reaction mixture was brought under nitrogen atmosphere. The reaction mixture was filtered through celite. The filtrate was concentrated in vacuo to afford the title compound (7.90 g, 99%) as a solid.
Wird geladen…