Dichloromethane → 1547036-81-6
反応式
[CH3:1][C:2]1([CH3:11])[CH2:7][CH2:6][CH:5]([CH2:8][CH2:9][OH:10])[CH2:4][CH2:3]1.C(Cl)Cl>CS(C)=O>[CH3:1][C:2]1([CH3:11])[CH2:3][CH2:4][CH:5]([CH2:8][CH:9]=[O:10])[CH2:6][CH2:7]1参加物
4
反応条件
- 温度
- 10 °C
実験手順
Under an argon atmosphere, to a mixture of 2-(4,4-dimethylcyclohexyl)ethanol (25.3 g) and DCM (200 mL) were added DMSO (50 mL) and TEA (100 mL), and a sulfur trioxide-pyridine complex (77.7 g) was added in small divided portions while maintaining the inner temperature to 10° C. or lower under ice-cooling. After stirring at room temperature for 2 hours, to the reaction mixture was added ice water, followed by concentration under reduced pressure and then extraction with chloroform. The organic layer was washed sequentially with 1 M hydrochloric acid and brine. To the organic layer was added MgSO4, followed by stirring. Then, the mixture was filtered and concentrated under reduced pressure to obtain (4,4-dimethylcyclohexyl)acetaldehyde (27.3 g).