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全氟丙酮是合成有机氟化物的重要原料之一。其合成方法文献已有报导。我们研究了1,2-全氟环氧丙烷在三氯化铝存在下的催化重排反应,为全氟丙酮的制备提供了更简便的方法。一、实验部分原料:无水AlCl_3(C.P级)。每次新装入反应器的三氯化铝都要在70℃下通氮活化。 1,2-全氟环氧丙烷,在使用之前先通过5％的NaOH水溶液洗瓶,P_2O_5干燥塔,KOH干燥塔及硷石灰干燥塔,以除去水及酸性物质。反应器:玻璃管,表面涂有电热涂料(供加热之用);反应区内径为1.8厘米,长55厘米,
Perfluoroacetone is one of the important raw materials for the synthesis of organic fluorides. The synthesis of the literature has been reported. We investigated the catalytic rearrangement of 1,2-perfluoropropylene oxide in the presence of aluminum trichloride to provide a simpler method for the preparation of perfluorinated acetone. First, the experimental part of raw materials: anhydrous AlCl_3 (C.P grade). Each new aluminum trichloride loaded into the reactor is activated at 70 ° C with nitrogen. 1,2-Propylene oxide, washed with 5% NaOH aqueous solution before use, P_2O_5 drying tower, KOH drying tower and soda ash drying tower to remove water and acidic substances. Reactor: glass tube, the surface coated with electric heating paint (for heating purposes); reaction zone diameter of 1.8 cm, length 55 cm,