全氟环氧丙烷在叶立德催化下,重排为全氟丙酰氟,然后与叶立德作用,生成含氟叶立德.产物经元素分析、红外光谱、质谱和核磁共振谱鉴定.根据红外光谱数据,我们认为两类含氟叶立德有不同的共振结构.从产物的产率再次看到,胂叶立德远较膦叶立德活泼. Perfluorinated propylene oxide is catalyzed by Ye Lide and rearranged to perfluoropropionyl fluoride, then reacted with ylide to form fluorine ylide. The product is identified by elemental analysis, infrared spectroscopy, mass spectrometry and nuclear magnetic resonance spectroscopy. According to the infrared spectrum data, we It is considered that the two types of fluorine-containing ylides have different resonance structures, and it is seen again from the yield of the product that arsonium ylide is much more active than phosphonium ylide.