Abstract BrCF 2 CF 2 Br reacts easily with various potassium thiophenoxides and phenoxides to give respectively 2-bromo tetrafluoroethyl thioethers and ethers. The lipophilicity of C 6 H 5 SCF 2 CF 2 Br and C 6 H 5 OCF 2 CF 2 Br is measured and compared with that of the well known C 6 H 5 SCF 2 CF 2 H and C 6 H 5 OCF 2 CF 2 H.
