Potassium Carbonate → HCID 22023797, compound

Participants

Reaction Conditions

Reaction Steps

33.6 g (100 mmol) of 2,2-bis(4-hydroxyphenyl)-1,1,1,3,3,3-hexafluoropropane (bisphenol AF) was measured out in a 11 three-necked flask equipped with an agitator, a Dean-stark tube, a condenser, a three-way cock and a thermometer. The air in the flask was then replaced by dried nitrogen. To the content of the flask were then added 150 ml of N,N-dimethylacetamide and 75 ml of toluene. The mixture was then stirred for dissolution. To the solution was then added 30.4 g (220 mmol) of potassium carbonate. The mixture was then heated to a temperature of 130° C. under reflux. While the resulting water was being boiled together with toluene and removed to the exterior through the Dean-Stark trap, the reaction temperature was then gradually raised to 150° C. After about 1 hour, when most of toluene was removed, the reaction solution was then cooled to a temperature of from 80° C. to 90° C. Subsequently, to the reaction solution was added 58.7 g (250 mmol) of 4-chloro-4′-fluorobenzophenone. The reaction solution was then reacted at a temperature of from 115° C. to 120° C. for 7 hours.

Provenance & Evidence