1: (E)-trimethyllt;2-(4-methylphenyl)ethenylgt;silane With boron trichloride in dichloromethane T=0°C; Substitution; 2 h; 2: benzenediazonium tetrafluoroborate With palladium diacetate in 1,4-dioxane T=20°C; Substitution; 24 h; Further stages.;

bis(dibenzylideneacetone)-palladium(0) in acetonitrile T=25°C; Yield given. Yields of byproduct given;

Yield given. Multistep reaction;

1: (E)-trimethyllt;2-(4-methylphenyl)ethenylgt;silane With boron trichloride in dichloromethane T=0°C; Substitution; 2 h; 2: 4-toluenediazonium tetrafluoroborate With palladium diacetate in 1,4-dioxane T=20°C; Substitution; 24 h; Further stages.;

boron trifluoride diethyl etherate; potassium tert-butylate; triphenylbismuth(V) difluoride 1.) CH2Cl2, r.t., 2 h, 2.) CH2Cl2, -78 deg C,; Yield given. Multistep reaction;

boron trifluoride diethyl etherate; triphenylbismuth(V) difluoride 1.) CH2Cl2, reflux, 16 h, 2.) DMF, H2O, r.t., 2 h; Yield given. Multistep reaction;

bis(dibenzylideneacetone)-palladium(0) in acetonitrile T=25°C; Yield given. Yields of byproduct given;