A new convenient synthesis of a series of polyfluoroalkyl substituted cyclopropane derivatives was achieved by the reaction of polyfluoroalkyl iodides with diethyl allylmalonate in the presence of sodium dithionite in 45 % ~ 55 % yields 摘要以连二亚硫酸钠为引发剂，烯丙基丙二酸二乙酯与多氟烷基碘代烷在温和条件下反应，方便地得到一系列多氟烷基取代的环丙烷衍生物，产率45 % ~ 55 % 。
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During the course of purification , the method of orthophenanthroline staining is used to detect the ferritin . 30 | il of the fractions eluted from the aca ^ gel column were pulled into the cells of the minim incubation plate . then sopil 20 % dithionite and 40 | il 0 . 1 % orthophenanthroline solution were pulled into respectively 在酶标板小孔中加入30 l待测液，加入30 l20的连二亚硫酸钠溶液还原后，再加入40 l0 . 1邻菲咯啉溶液，根据有无桔红色颜色产生确定是否含铁蛋白。
