tetrachlorosilane; dysprosium(II) diiodide in ethylene glycol dimethyl ether T=70°C; 72 h; Title compound not separated from byproducts.;

bismuth(III) trifluoromethanesulfonate T=140°C; 4 h; Reflux;

potassium phosphate; tetrakis(triphenylphosphine) palladium(0); tri-tert-butyl phosphine in toluene Suzuki coupling; 24 h; Reflux;

[(P{(NC5H10)(C6H11)2})2Pd(Cl)2] in tetrahydrofuran; 1-methyl-pyrrolidin-2-one T=100°C; Negishi cross-coupling reaction; 0.0833333 h; In air;

1: 1-bromo-2-methyl benzene With tert.-butyl lithium in tetrahydrofuran; pentane T=-78°C; 1 h; Inert atmosphereSchlenk technique; 2: With zinc(II) chloride in tetrahydrofuran; pentane T=20°C; 2 h; Inert atmosphereSchlenk technique; 3: 1,3,5-tribromo benzene With tetrakis(triphenylphosphine) palladium(0) in tetrahydrofuran T=85°C; 14 h; Inert atmosphere;

[{RuCl2(cymene)}2]; ethene; tri-cyclo-hexyl-phosphine in toluene T=80°C; P=760.051 Torr; 24 h;

N-bromosuccinmide

pyridine; potassium permanganate in water 12 h; Reflux;

1: 72 percent / 6 eq N-bromosuccinimide (NBS), azobisisobutyronitrile (AIBN) / CCl4 / 3 h / Heating 2: 20 percent / conc. H2SO4 / tetrahydrofuran / 5 h / Heating 3: 32 percent / PCC / CH2Cl2 / 4 h / Ambient temperature View Scheme