تفاعل #1178395

معادلة التفاعل

4,4′-dihydroxybenzophenone

→

1,1,2,2-tetrakis(4-hydroxyphenyl)ethylene

المردود 83.0%

المذيبات

THF

ظروف التفاعل

المعالجة

1. 1
   درجة الحرارةwas refluxed for 20 h
2. 2
   ترشيحfiltered
3. 3
   أخرىThe filtrates were evaporated
4. 4
   أخرىthe crude product was purified by a silica gel column
5. 5
   أخرىDHTPE was obtained as slight yellow powder of 83% yield

الإجراء التجريبي

A suspension of 4,4′-dihydroxybenzophenone (3.0 g, 14.0 mmol), 1 equiv of TiCl4 (1.54 ml, 14.0 mmol), and 2 equiv of Zn dust (1.83 g, 28.0 mmol) in 100 ml of dry THF was refluxed for 20 h. The reaction mixture was cooled to room temperature and filtered. The filtrates were evaporated and the crude product was purified by a silica gel column using ethyl acetate (EA) as eluent. DHTPE was obtained as slight yellow powder of 83% yield.

المصدر