Fluorinated alkyl groups such as PhCF2,
C6F13, CF3CCl2 and
CF2CO2Et are nucleophilically introduced into an
aldehyde or ketone using fluorinated alkyl halides with SmI2;
the reaction proceeds effectively at room temperature to give the
corresponding alcohol. Furthermore, the synthesis of
PhCF2SiMe3,
C6F13SiMe3 and
C6F13SiMe2Pri is achieved by
reaction of the halide with SmI2 in the presence of the silyl
chloride; the resultant fluoroalkylated silyl compounds are used as
reagents for nucleophilic fluoroalkylation.
2-Chloro-3,3,3-trifluoropropene derivatives are also prepared
selectively by the reaction of CF3CCl3 with an
excess of SmI2 in the presence of an aldehyde and
PriOH.
氟代烷基如Ph
CF2、
C6F13、CF3CCl2和
CF2CO2Et可以通过
氟代烷基卤化物与
SmI2在室温下有效反应,亲核引入醛或酮中,形成相应的醇。此外,通过卤化物与 在
硅氯化物存在下的反应,实现了Ph
CF2SiMe3、 SiMe3和 SiMe2Pri的合成;由此得到的
氟代烷基
硅化合物作为亲核
氟代烷基化的试剂。2-
氯-
3,3,3-三氟丙烯衍
生物也通过CF3CCl3与过量的 在醛和PriOH存在下的反应选择性制备。