Unlike perfluorocyclobutene, perfluorocyclo-pentene and -hexene do not form oligomers with pyridine. A range of oligomers is obtained from mixtures of perfluorocycloalkenes in reactions initiated by caesium fluoride. Products are also obtained from perfluorocycloalkenes with perfluoropropene and between perfluorocyclobutene and perfluorobut-2-ene. A variation is observed in the balance between exo-
与
全氟环丁烯不同,
全氟环戊烯和-己烯不与
吡啶形成低聚物。在
氟化铯引发的反应中,从
全氟环烯烃的混合物中可以获得一系列低聚物。还从
全氟环烯烃与
全氟丙烯以及
全氟环丁烯和
全氟丁-2-烯之间获得产物。在
全氟环烯烃低聚物的外-和内-异构体之间的平衡中观察到变化。结论是构象相互作用主导着平衡的位置,除了四元环外,在四元环中角应变也很重要。