81850-44-4
4,4,5,5,5-pentafluoro-3-oxo-2-(triphenyl-l5-phosphanylidene)pentanenitrile
→
~82%
81850-46-6
4,4,5,5,5-pentafluoropent-2-ynenitrile
+
791-28-6
三苯基氧化膦