2,3-difluoro-2-(1,1,2,2,2-pentafluoroethyl)-3-(trifluoromethyl)oxirane

(3-chloro-hexafluoro-propyl)-trifluoro-oxirane

三氟乙酰氯

七氟丁酰氯

(trifluoro methyl) magnesiumiodide