| 摘要 |
PURPOSE:To efficiently produce the subject high-purity compound useful, e.g. as a raw material of synthetic resins, etc., in a high yield by reacting bisphenol A in an organic solvent in a specified condition. CONSTITUTION:Bisphenol A is dissolved in an organic solvent such as DMF and a hydrogen fluoride solution is admixed therewith and dissolved. In addition, a metal halide such as zinc fluoride as a catalyst (The amount of the catalyst added is 0.05 to 0.1wt.% based on bisphenol A) is added thereto and the resultant mixture is reacted while keeping the reaction solution at 0 to 60 deg.C and supplying a hydrogen peroxide solution thereto. The reaction mixture is kept at 10 to 60 deg.C and reacted for 2 to 5hr and, after recognizing completion of the reaction, water is added thereto so as to deposit crystals. The reaction solution is allowed to stand overnight and the crystals are filtered. The separated crystals are water washed, dried and purified with an organic solvent, thus affording the objective compound. |
