1: 2,2-difluoro-1-tributylstannylethenyl p-toluenesulfonate With tetrakis(triphenylphosphine) palladium(0); 1,1,1,2,2,2-hexabutyl-distannane; lithium bromide in tetrahydrofuran 4 h; Inert atmosphereReflux; 2: iodobenzene With copper(l) iodide; tetrakis(triphenylphosphine) palladium(0) in N,N-dimethyl-formamide T=80°C; 3 h; Inert atmosphere;