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-(butyltellanyl)propan-1-ol With n-butyllithium in tetrahydrofuran T=-78°C; 0.0833333 h; 2: With copper (I) cyanide in tetrahydrofuran T=-78°C; 1 h; 3: benzoyl chloride in tetrahydrofuran T=-78°C; 0.5 h;