Diethylene Glycol → 2-[2-[4-[1,1,2,2-Tetrafluoro-2-[4-[2-(2-hydroxyethoxy)ethoxy]phenyl]ethyl]phenoxy]ethoxy]ethanol
Reaction equation
F[C:2]1[CH:7]=[CH:6][C:5]([C:8]([F:20])([F:19])[C:9]([C:12]2[CH:17]=[CH:16][C:15](F)=[CH:14][CH:13]=2)([F:11])[F:10])=[CH:4][CH:3]=1.[CH2:21]([OH:27])[CH2:22][O:23][CH2:24][CH2:25][OH:26]>>[OH:27][CH2:21][CH2:22][O:23][CH2:24][CH2:25][O:26][C:2]1[CH:7]=[CH:6][C:5]([C:8]([F:20])([F:19])[C:9]([C:12]2[CH:17]=[CH:16][C:15]([O:27][CH2:21][CH2:22][O:23][CH2:24][CH2:25][OH:26])=[CH:14][CH:13]=2)([F:11])[F:10])=[CH:4][CH:3]=1Participants
3
Conditions
- Temperature
- 150 °C
Procedure
700 ml of diethylene glycol and 65 g of 1,2-bis(4-fluorophenyl)-1,1,2,2-tetrafluoroethane* are heated to 130° C. in a stirred flask and 57 g of potassium tert.-butylate are added in portions. The mixture is then heated to 150° C. and stirred at this temperature for 2 hours. The mixture is cooled, poured onto 4 liters of ice-water and mixed thoroughly with a homogenizer (Ultraturax), until crystals precipitate. The precipitate is filtered off with suction, stirred again with 3 liters of water, acidified with hydrochloric acid, filtered off with suction again, dried and recrystallized from toluene.