1: (RS)-1-(n-butyltellanyl)-3-butanol With n-butyllithium in tetrahydrofuran; hexane T=-70°C; Inert atmosphere; 2: With copper (I) cyanide in tetrahydrofuran; hexane T=-70°C; Inert atmosphere; 3: p-toluenesulfonic acid nonyl ester in tetrahydrofuran; hexane T=-70°C; Inert atmosphere;

potassium carbonate; 1-hexadecyl-1H-imidazole in water T=25°C; Schotten-Baumann type reaction; 4 h;