1: 3-(butyltellanyl)propan-1-ol With n-butyllithium in tetrahydrofuran; hexane cooling; 2: in tetrahydrofuran; hexane T=-70°C; 1 h; 3: cyclohexenon in tetrahydrofuran; hexane T=-78 - 20°C; Further stages.;

1: 3-chloropropan-1-ol With methyl-magnesium chloride in tetrahydrofuran T=20°C; 0.333333 h; 2: With magnesium; ethylene dibromide in tetrahydrofuran 1 h; Heating; 3: cyclohexenon With copper(I) bromide in tetrahydrofuran T=-78 - 0°C; 1 h;