Novel β-polyfluoroalkoxy vinamidinium salts 3 and/or 4 were synthesized in good yields by the reaction of N-(2-polyfluoroalkoxy-3,3-difluoro-1-propenyl)trimethylammonium iodides (2), prepared from N-(2,3,3-trifluoro-1-propenyl)trimethylammonium iodide (1), with secondary amines in MeCN at 70 °C for 1 h. The salts were also obtainable in comparable yields by the one-pot reaction of 1 with sodium polyfluoroalkoxide followed by treatment with amines.
新型β-聚氟烷氧基维奈妥盐3和/或4通过N-(2-聚氟烷氧基-3,3-二
氟-
1-丙烯基)三甲基
铵碘化物(2)与二级胺在美克腈中于70°C反应1小时合成,产率良好。通过将1与聚氟烷醇
钠进行一锅反应后处理胺,也可以获得相似产率的盐。