反应详情

Trifluoromethanesulfonic anhydride (3 ml, 15 mmol) was added to a dichloromethane (50 ml) solution of the obtained 6-decyl-3-methylthio-2-hydroxynaphthalene (3.63 g, 10 mmol) and pyridine (2.5 ml, 30 mmol) at 0° C. This solution was stirred at room temperature for 25 minutes. Then, the mixture was diluted with water (20 ml), and hydrochloric acid (4 M, 20 ml) was added. The mixture was extracted with dichloromethane (30 ml×3). The organic phases obtained by repeating the extraction three times were collected, washed with saturated saline water (30 ml×3), dried with MgSO4, and condensed to obtain 6-decyl-3-methylthio-2-(trifluoromethanesulfonyloxy)naphthalene (compound (4)-81) (4.89 g, 99%).

1. additionwas added
2. extractionThe mixture was extracted with dichloromethane (30 ml×3)
3. customThe organic phases obtained
4. extractionthe extraction three times
5. customwere collected
6. washwashed with saturated saline water (30 ml×3)
7. dry with materialdried with MgSO4, and condensed