Synthesis of heterocycles with polyfluoroalkyl substituents from unsaturated compounds containing polyfluoroalkyl groups. (Review)

Methods for the construction of heterocyclic systems containing polyfluoroalkyl substituents from derivatives of ethylene and acetylene are discussed. It is shown that various compounds with polyfluoroalkyl groups can be used as building blocks: α,β-unsaturated carbonyl compounds, their synthetic organosilicon equivalents (silyl-substituted alcohols, silyl ethers of enols), and also sulfones, nitriles, polyfluoroalkenes (in reactions at the double bond), acetylenecarboxylic acids, their esters, and polyfluoroalkynes.