1,4-Dioxane → (R)-6-fluoro-7-(2-methoxypropoxy)quinoline-2-carbaldehyde
反応式
[F:1][C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][C:11]=1[O:12][CH2:13][C@H:14]([O:16][CH3:17])[CH3:15])[N:8]=[C:7]([CH3:18])[CH:6]=[CH:5]2.[O:19]1CCOCC1>O>[F:1][C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][C:11]=1[O:12][CH2:13][C@H:14]([O:16][CH3:17])[CH3:15])[N:8]=[C:7]([CH:18]=[O:19])[CH:6]=[CH:5]2参加物
4
実験手順
To a solution of (R)-6-fluoro-7-(2-methoxypropoxy)-2-methylquinoline (0.281 g, 1.13 mmol) in dioxane (4 mL) and water (0.04 mL) was added SeO2 (0.138 g, 1.24 mmol). The reaction mixture was heated at reflux for 3 hours. After cooling, the mixture was filtered through Celite®. The filtrate was concentrated. The residue was purified by flash chromatography on silica gel (hexanes:EtOAc, 4:1) to give (R)-6-fluoro-7-(2-methoxypropoxy)quinoline-2-carbaldehyde (0.219 g, 74%) as a solid.