Triacetoxyperiodinane → 1-(3-(4-Fluorophenyl)isoxazol-5-yl)ethanone
反応式
[F:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[CH:12]=[C:11]([CH:13]([OH:15])[CH3:14])[O:10][N:9]=2)=[CH:4][CH:3]=1.CC(OI1(OC(C)=O)(OC(C)=O)OC(=O)C2C=CC=CC1=2)=O>C(Cl)Cl>[F:1][C:2]1[CH:3]=[CH:4][C:5]([C:8]2[CH:12]=[C:11]([C:13](=[O:15])[CH3:14])[O:10][N:9]=2)=[CH:6][CH:7]=1参加物
4
実験手順
To a stirred solution of 1-(3-(4-fluorophenyl)isoxazol-5-yl)ethanol (0.15 g, 0.724 mmol) in DCM (10 mL) was added Dess-Martin periodinane (0.46 g, 1.08 mmol) at room temperature. The resulting solution was stirred for 16 h. The reaction mixture was filtered and washed with DCM (3×50 mL). The organic layer was washed with water (50 mL) followed by brine solution (50 mL), dried over sodium sulfate and concentrated under reduced pressure to obtain crude product. The crude product was purified by silica gel column chromatography (100-200 mesh; using 80% ethyl acetate in hexane) to obtain 1-(3-(4-fluorophenyl)isoxazol-5-yl)ethanone as off-white solid (0.1 g, 68% yield). 1H NMR (400 MHz, CDCl3): δ 7.81 (t, 2H), 7.20 (s, 1H), 7.17 (d, 2H), 2.66 (s, 3H).