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Park等曾报道全氟丙烯与三氯化铝在50-60℃下反应,分离出一系列取代反应产物,并阐明其分子中氟氯基团与三氯化铝反应时的稳定性次序。Haszeldine等做了2,3-二溴全氟丙烯在三溴化铝存在下的重排反应,并提出了相应的重排机理。本工作以CFCl_2CF_2CF=CF_2(1)为原料与三氯化铝反应,通过试验找到在极温和反应条件下(三氯化铝与1的摩尔比为0.5,10℃下反应3h)获得几乎定量的重排产物CF_3CF_2CF=CCl_2(3),这一反应可用在三氯化铝催化下,1分子内烯丙位氟原子在分子内完成两次1,3-转移,从而使双键发生连续的烯丙型转移来解释.
Park et al. Reported that perfluoropropenes reacted with aluminum trichloride at 50-60 ° C to isolate a series of substituted reaction products and to elucidate the order of stability of the fluorine-chlorine groups in their molecules upon reaction with aluminum trichloride. Haszeldine et al. Have done a rearrangement reaction of 2,3-dibromoperfluoropropene in the presence of aluminum tribromide and proposed a corresponding rearrangement mechanism. In this work, CFCl_2CF_2CF = CF_2 (1) was used as the raw material to react with aluminum trichloride. The results showed that under the mild reaction conditions (the molar ratio of aluminum trichloride and 1 was 0.5, the reaction at 3 ℃ for 3h) The rearrangement product CF_3CF_2CF = CCl_2 (3), this reaction can be used in the aluminum chloride catalyst, one molecule of allylic fluorine atoms in the molecule to complete two 1,3-transfer, so that double bond occurs continuous ene C transfer to explain.