反应详情

6.0 g (23.7 mmol) of 9-phenylanthracene was dissolved in 80 mL of carbon tetrachloride, and then, in the reaction solution thereof, a solution in which 3.80 g (21.1 mmol) of bromine was dissolved in 10 mL of carbon tetrachloride was dropped by a dropping funnel. After dropping, it was stirred for one hour at room temperature. After reaction, a sodium thiosulfate aqueous solution was added thereto and stirred. An organic layer was washed with a sodium hydroxide aqueous solution and saturated saline, and then dried with magnesium sulfate. After the mixture was subjected to natural filtration, the filtrate was concentrated and dissolved in toluene, and then filtration was carried out using florisil, celite, and alumina. When the filtrate was concentrated and then recrystallized with a mixed solution of dichloromethane and hexane, 7.0 g of 9-bromo-10-phenylanthracene that was a target substance was obtained as a light yellow solid at a yield of 89% (Synthesis scheme (b-2)).

1. additionwas dropped by a dropping funnel
2. customAfter reaction
3. stirringstirred
4. washAn organic layer was washed with a sodium hydroxide aqueous solution and saturated saline
5. dry with materialdried with magnesium sulfate
6. filtrationAfter the mixture was subjected to natural filtration
7. concentrationthe filtrate was concentrated
8. dissolutiondissolved in toluene
9. filtrationfiltration
10. concentrationWhen the filtrate was concentrated
11. customrecrystallized with a mixed solution of dichloromethane and hexane, 7.0 g of 9-bromo-10-phenylanthracene that
12. customwas obtained as a light yellow solid at a yield of 89% (Synthesis scheme (b-2))