1: 1-benzyl-4,5-dihydroimidazole With n-butyllithium in tetrahydrofuran; hexane T=-78°C; 0.333333 h; Inert atmosphere; 2: bis(4-methylphenyl)-disulfide in tetrahydrofuran; hexane T=-78 - 20°C; 2.5 h;

1: 1-benzyl-4,5-dihydroimidazole With n-butyllithium in tetrahydrofuran; hexane T=-78°C; 0.333333 h; Inert atmosphere; 2: diphenyldisulfane in tetrahydrofuran; hexane T=-78 - 20°C; 2.5 h;

1: 1-benzyl-4,5-dihydroimidazole With n-butyllithium in tetrahydrofuran; hexane T=-78°C; 0.333333 h; Inert atmosphere; 2: methyl iodide in tetrahydrofuran; hexane T=-78 - 20°C; 4 h;

1: 1-benzyl-4,5-dihydroimidazole With n-butyllithium in tetrahydrofuran; hexane T=-78°C; 0.333333 h; Inert atmosphere; 2: dimethyl sulfate in tetrahydrofuran; hexane T=-78 - 20°C; 4 h;

1: 1.) BuLi / 1.) THF, -78 deg C 2: 46 percent / s-BuLi / tetrahydrofuran / -78 °C View Scheme