反应详情

To 500 ml of toluene in a 100 ml round bottom flask, fitted with a condenser and magnetic stirrer, are added 7.6 g (0.03M) of the potassium salt of 4-hydroxy-4'-nitrobiphenyl, 36.6 g (0.15M) of 1,6-dibromohexane, and 0.5 g of 18-crown-6 ether. The mixture is refluxed for about 20 hours, and then filtered hot. The solvent is evaporated, and the residual crude product is recrystallized from hexane to provide purified product.

1. temperatureThe mixture is refluxed for about 20 hours
2. filtrationfiltered hot
3. customThe solvent is evaporated
4. customthe residual crude product is recrystallized from hexane
5. customto provide
6. custompurified product