1: With n-butyllithium in tetrahydrofuran; hexane 0.25 h; Inert atmosphere; 2: With tribromo methane in tetrahydrofuran; hexane T=-78 - 20°C; Inert atmosphere;

hydrogenchloride in benzene

1: elementar sulfur (S8) 2: HCl / benzene View Scheme

1: tetrahydrofuran 2: elementar sulfur (S8) 3: HCl / benzene View Scheme

1.1: n-butyllithium / tetrahydrofuran; hexane / 0.17 h / Inert atmosphere 1.2: 0.25 h / Inert atmosphere 2.1: n-butyllithium / tetrahydrofuran; hexane / 0.25 h / Inert atmosphere 2.2: -78 - 20 °C / Inert atmosphere View Scheme