Reacción #1178395

Ecuación de reacción

4,4′-dihydroxybenzophenone

→

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

Rendimiento 83.0%

Disolventes

THF

Condiciones de reacción

Tratamiento posterior

1. 1
   Temperaturawas refluxed for 20 h
2. 2
   Filtraciónfiltered
3. 3
   OtroThe filtrates were evaporated
4. 4
   Otrothe crude product was purified by a silica gel column
5. 5
   OtroDHTPE was obtained as slight yellow powder of 83% yield

Procedimiento

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.

Fuente