反应详情

温度

-45 °C

7-Methyloxycarbonyl-4-chloroquinoline (2.1 g, 9.5 mmol) is dissolved in anhydrous THF (25 mL) and anhydrous ether (200 mL). The solution is cooled in a dry ice/acetone bath and treated 1M lithium aluminum hydride in THF (11.0 mL, 11 mmol). The solution is warmed (approximately −45° C.) for 20 minutes and quenched with ethyl acetate. The solution is diluted with ether (100 mL) and treated with water (36 mL), 15% NaOH (36 mL) and water (36 mL) in succession. The mixture is filtered and evaporated to yield the title compound as a residue (2.0 g, 9.7 mmol) which is dried under vacuum and used without further purification. MS m/z: M+=193; 1H NMR (CDCl3, 300 MHz) δ8.65 (d, 1H), 8.15 (d, 1H), 8.0 (d, 1H), 7.6 (d, 1H), 7.45 (d, 1H), 4.8 (s, 2H).

1. temperatureThe solution is cooled in a dry ice/acetone bath
2. customquenched with ethyl acetate
3. additionThe solution is diluted with ether (100 mL)
4. additiontreated with water (36 mL), 15% NaOH (36 mL) and water (36 mL) in succession
5. filtrationThe mixture is filtered
6. customevaporated