تفاعل #11841

معادلة التفاعل

4,4′-Dibromo-2-amino-1,1′-biphenyl

iodobenzene

potassium hydroxide

1,10-phenanthroline

→

white crystals

4,4′-Dibromo-2-Diphenylamino-1,1′-Biphenyl

المذيبات

toluene

toluene

ظروف التفاعل

المعالجة

1. 1
   درجة الحرارةat reflux for 15 hours
2. 2
   أخرىThe dark reaction mixture
3. 3
   غسيلThe toluene solution was washed with DI water
4. 4
   تجفيفdried with magnesium sulfate
5. 5
   أخرىevaporated
6. 6
   أخرىThe dark residue obtained
7. 7
   أخرىwas recrystallized trice from hexane/toluene (4:1 volume)

الإجراء التجريبي

4,4′-Dibromo-2-amino-1,1′-biphenyl (16.35 g, prepared according to Libman and Slack (1951) J. Chem. Soc., p. 2588), iodobenzene (26.52 g, 0.13 mol), flake potassium hydroxide (22.4 g, 0.35 mol), 1,10-phenanthroline (0.45 g), copper (I) chloride (0.25 g), and toluene (30 ml) were charged into a flask and stirred at reflux for 15 hours. The dark reaction mixture was cooled to room temperature and diluted with 200 ml of toluene. The toluene solution was washed with DI water, dried with magnesium sulfate, and evaporated. The dark residue obtained was recrystallized trice from hexane/toluene (4:1 volume) to yield 10 grams of white crystals to yield the desired monomer. 1H NMR (CDCl3): δ=6.8–7.5, multiple peaks.

المصدر