1种1,1,1,4,4,4-六氟-2-丁烯的合成方法 ,包括以下步骤:1)将1,1,1,4,4,4-六氟丁烷与卤素按摩尔比2～10:1混合后,在反应温度为300～500℃、1,1,1,4,4,4-六氟丁烷的停留时间为2～90 s的条件下进行反应,将反应产物水洗、冷凝、精馏得 A method for synthesizing 1,1,1,4,4,4-hexafluoro-2-butene comprises the following steps: 1) mixing 1,1,1,4,4,4-hexafluorobutane with halogen After mixing at a molar ratio of 2 to 10: 1, the reaction is carried out under the conditions of a reaction temperature of 300 to 500 DEG C, a residence time of 1,1,1,4,4,4-hexafluorobutane of 2 to 90 s, The reaction product was washed, condensed, distillation obtained