1: 2,3,3,3-tetrafluoro-1-phenyl-1-phenylsulfonylpropene With 2,2'-azo-bisisobutyronitrile; tri-n-butyl-tin hydride in benzene T=80 - 90°C; 24 h; 2: iodobenzene With copper(l) iodide; tetrakis(triphenylphosphine) palladium(0) in N,N-dimethyl-formamide T=20°C; 4 h;