| 摘要 |
PURPOSE:To obtain the titled compound economically, by reacting iodine and iodine pentafluoride with a fluoroolefin using antimony, molybdenum, tungsten, phosphorus or their compound as a catalyst, and a specific titled compound as a diluent. CONSTITUTION:A perfluoroalkyl iodide is produced by the reaction of iodine, iodine pentafluoride and a fluoroolefin. The reaction is carried out by using antimony, molybdenum, tungsten, phosphorus or their compound as a catalyst, and a proper amount of a perfluoroalkyl iodide of formula CF3CF2(CF2)mI(m is 2-9) and/or (CF3)2CF(CF2)nI(n is 2, 4, 6 or 8) as a diluent. The amount of the diluent is preferably about 0.3-5 times weight of the iodine pentafluoride. The reaction heat can be removed safely and effectively by this process, and the objective compound is produced under atmospheric pressure or a relatively low pressure without necessitating the preheating of the reaction system at a high temperature. |
