Development of an efficient method for the synthesis of perfluoroalkylated heterocyclic compounds is currently an important subject, especially in agrochemical and pharmaceutical fields, 1 because the fluoroalkylated heterocyclic compounds have high potential as herbicides, fungicides, drugs and pesticides, etc. 2 Among the various methods, the building-block strategy is the most popular and attractive. In our continuous work on oxygenative perfluoroalkylation of olefins, 3. and ...