【摘要】 以2-氯-1,1,1,2-四氟丙烷为原料,在叔丁醇钾/叔丁醇体系下经脱氯化氢反应液相合成2,3,3,3-四氟丙烯,所得目标产物经GC-MS定性、经GC定量。结果表明最佳反应条件为:在2.5mol/L叔丁醇钾/叔丁醇体系下,以n(2-氯-1,1,1,2-四氟丙烷)∶n(叔丁醇钾)=1∶2物料配比,在50℃下,采取连续反应方式进行反应,其产率可达65.9%,选择性98.5%。该方法具有条件温和,操作简单,溶剂可回收重复利用,对环境友好等特点,适合工业化生产。更多还原

【Abstract】 An efficient method to prepare 2,3,3,3-tetrafluoropropene was developed and described.The target compound was synthesized from 2-chloro-1,1,1,2-tetrafluoropropane in potassium tert-butoxide/tert-butanol systemviadehydrochlorination.The product was confirmed by GC-MS.The optimum reaction conditions were 1∶2of starting material ratio(molar ratio)at 50℃in potassium tert-butoxide/tert-butanol system(2.5mol/L).The conversion of the reaction was 65.9%and the selectivity reached 98.5%.The method is characterized by mild reaction conditions,simple operation and environment friendly.更多还原