تفاعل #319371

معادلة التفاعل

potassium

4-hydroxy-4'-nitrobiphenyl

1,6-dibromohexane

18-crown-6 ether

→

4-(6-Bromohexyloxy)-4'-nitrobiphenyl

المذيبات

toluene

ظروف التفاعل

المعالجة

1. 1
   درجة الحرارةThe mixture is refluxed for about 20 hours
2. 2
   ترشيحfiltered hot
3. 3
   أخرىThe solvent is evaporated
4. 4
   أخرىthe residual crude product is recrystallized from hexane
5. 5
   أخرىto provide
6. 6
   أخرىpurified product

الإجراء التجريبي

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.

المصدر