Copper(0)-mediated tetrafluoroethylenation of various aromatic compounds

• A novel tetrafluoroethylenation of various aromatics was realized.
• The reaction was carried out in DMSO at 160 °C for 24 h in a sealed tube.
• A substituent on the benzene ring in the aromatic helides did not bring about a significant influence on the transformation.

Treatment of 4-bromo-3,3,4,4-tetrafluorobut-1-ene with 6.0 equiv. of various aryl halides in the presence of 9.0 equiv. of copper metal in DMSO at 160 °C for 24 h in a sealed tube gave the corresponding (1,1,2,2-tetrafluoro-3-buten-1-yl) group-substituted aromatics in acceptable yields.

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