1: 1,1-Diiodoethane With zinc; PbCl2 in tetrahydrofuran T=25°C; 1 h; 2: 4-lt;4-Nitro-phenylgt;-thiohydrocinnamat With trifuran-2-yl-phosphane; tris(dibenzylideneacetone)dipalladium (0) in tetrahydrofuran T=0°C; 0.25 h; 3: chloro-trimethyl-silane in tetrahydrofuran T=25°C; 6 h; Further stages.;

n-butyllithium 1.) THF, Et2O, hexane, -78 deg C, 5 min, 2.) from -78 to 0 deg C, 15 min; Yield given. Multistep reaction;