[F:1][C:2]1[CH:7]=[CH:6][C:5]([C:8](=O)[CH2:9][C:10]2[CH:15]=[CH:14][CH:13]=[CH:12][N:11]=2)=[CH:4][CH:3]=1.Cl.[NH2:18][OH:19].C([O-])(=O)C.[Na+]>CO.O>[F:1][C:2]1[CH:7]=[CH:6][C:5]([C:8](=[N:18][OH:19])[CH2:9][C:10]2[CH:15]=[CH:14][CH:13]=[CH:12][N:11]=2)=[CH:4][CH:3]=1To a solution of 1-(4-fluorophenyl)-2-pyridin-2-ylethanone (6.27 g 29 mmol) in methanol (100 ml) was added a solution of hydroxylamine hydrochloride (9.6 g 130 mmol) and sodium acetate (15.6 g) in water (80 ml) and the reaction was stirred at room temperature for 24 hours. The resulting precipitate was filtered off and dried to give the title compound as a white solid (5.83 g 87%). (M-H2O)H+: 213; NMR: (CDCl3): δ 4.42 (2H, s) 7.00 (2H, t) 7.14 (1H, m) 7.28 (1H, d) 7.59 (1H, dt) 7.72 (2H, m) 8.55 (1H, m) 8.96 (1H, br).
Loading…
