Copper(0)-mediated tetrafluoroethylenation of various aromatic compounds

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 degrees 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. (C) 2015 Elsevier B.V. All rights reserved.