反应详情

2.27 g of 1-(6-methyl-1,3-benzodioxol-5-yl)-1-propanol, 0.1 g of p-toluenesulfonic acid and 1.52 g of mercaptoacetic acid were dissolved in 80 ml of benzene to obtain a solution. This solution was heated under reflux for 12 hours, while removing generated water. The reaction mixture was poured into water. The aqueous layer was basified and washed with ether. The aqueous layer was acidified and extracted with chloroform. The organic layer was washed with water, dried over magnesium sulfate and concentrated in a vacuum to obtain a pale yellow solid. This solid was purified by silica gel column chromatography (ethyl acetate/hexane=2:8) to obtain 2.83 g of the title compound as a white crystal.

1. customto obtain a solution
2. temperatureThis solution was heated
3. temperatureunder reflux for 12 hours
4. customwhile removing
5. additionThe reaction mixture was poured into water
6. washwashed with ether
7. extractionextracted with chloroform
8. washThe organic layer was washed with water
9. dry with materialdried over magnesium sulfate
10. concentrationconcentrated in a vacuum
11. customto obtain a pale yellow solid
12. customThis solid was purified by silica gel column chromatography (ethyl acetate/hexane=2:8)