反应详情

In a 2 L round-bottom flask, 50 g of the compound (1) and 200 g of 9,9-dihexylfluorene were dissolved in 1000 ml of dichloromethane, and then the temperature was decreased to 0° C. The reaction solution was slowly added with a s olution of 10 ml of methane sulfonic acid dissolved in 100 ml of dichloromethane with stirring, followed by further stirring for 2 hours. The resulting reaction solution was poured into water, after which an extraction was performed using diethyl ether. The solvent was evaporated using a rotary evaporator. A column chromatography separation resulted in 60 g (58%) of (9,9-di(9,9-dihexylfluoren-2-yl)-2,7-dibromofluorene) (2).

1. customwas decreased to 0° C
2. additionThe reaction solution was slowly added with
3. stirringby further stirring for 2 hours
4. customThe resulting reaction solution
5. extractionafter which an extraction
6. customThe solvent was evaporated
7. customa rotary evaporator
8. customA column chromatography separation
9. customresulted in 60 g (58%) of (9,9-di(9,9-dihexylfluoren-2-yl)-2,7-dibromofluorene) (2)