The Butin reaction

(Image Presented) This review summarizes the reported data on the Butin reaction, i.e., acid-catalyzed transformations of furans to a range of other heterocycles via intramolecular attack of nucleophile, connected to the α-carbon atom of furan ring by three- to six-membered linker, on the same α-carbon atom. © 2016 Springer Science+Business Media New York.