I2/K2CO3-promoted ring-opening/cyclization/rearrangement/aromatization sequence: A powerful strategy for the synthesis of polysubstituted furans

4-Cyanofuran-3-carboxylate derivatives were synthesized efficiently via iodine/potassium carbonate-promoted ring-opening/cyclization/rearrangement domino reaction of 1-cyanocyclopropane-1-carboxylates.