反应详情

After suspending lithium aluminum hydride (11.4 g, 0.300 mol) in tetrahydrofuran (300 mL), a solution of 1,1-cyclohexanediacetic acid (30.0 g, 0.150 mol) in tetrahydrofuran (200 mL) was added dropwise at room temperature. After completion of the dropwise addition, the mixture was stirred for 5 minutes while cooling on ice, and then water (11.5 mL) was added dropwise over a period of 5 minutes while cooling on ice. After stirring for 10 minutes, 15% aqueous sodium hydroxide (11.5 mL) was added dropwise over a period of 5 minutes. Diethyl ether (500 mL, special grade) was added, and after stirring for 5 minutes, water (34.5 mL) was added. The mixture was then stirred for 2 hours while cooling on ice, and then celite was added and the mixture was filtered. The filtrate was concentrated under reduced pressure and azeotropically distilled with toluene to obtain the title compound as a colorless oil (21.7 g).

1. additionAfter completion of the dropwise addition
2. temperaturewhile cooling on ice
3. temperaturewhile cooling on ice
4. stirringAfter stirring for 10 minutes
5. stirringafter stirring for 5 minutes
6. stirringThe mixture was then stirred for 2 hours
7. temperaturewhile cooling on ice
8. additioncelite was added
9. filtrationthe mixture was filtered
10. concentrationThe filtrate was concentrated under reduced pressure
11. distillationazeotropically distilled with toluene