反应详情

A 250 mL round bottom flask was charged with 2.0 g (0.004 mol) of 1-hexyl-2,3,4,5,6-pentaphenylbenzene and 50 mL of dichloromethane. Chlorosulfonic acid (15 mL) was added to the stirred reaction mixture at room temperature via an addition funnel. The reaction mixture turned immediately purple, and then clear orange after 1 h. The reaction mixture was stirred at room temperature for 1 d, and then poured onto crushed ice. The layers were separated, and the aqueous layer was extracted twice with dichloromethane. The combined organic extracts were dried over anhydrous magnesium sulfate, filtered, and concentrated to deposit a light-gray solid. The product was recrystallized from ethyl acetate to provide 1.39 g (57%) of a white powder. 1H NMR (CDCl3) δ 7.96 (d, J=10, 4 H), 7.66 (m, 6), 7.41 (d, J=10, 4H), 7.08 (m, 6H). MS (FD) m/e 1034 (M+).

1. additionpoured
2. customonto crushed ice
3. customThe layers were separated
4. extractionthe aqueous layer was extracted twice with dichloromethane
5. dry with materialThe combined organic extracts were dried over anhydrous magnesium sulfate
6. filtrationfiltered
7. concentrationconcentrated
8. customThe product was recrystallized from ethyl acetate