triethylsilane; indium tribromide in toluene T=100°C; 1 h; Inert atmosphere;

diphosphorous tetraiodide in benzene 7 h; Heating;

1: 4-chloro-1-hydroxymethyl-benzene With iodine; 1-n-butyl-3-methylimidazolium tetrafluoroborate T=20°C; 0.5 h; 2: butane-1-thiol T=20°C;

1.1: sodium tetrahydroborate; 1-n-butyl-3-methylimidazolium tetrafluoroborate / 20 °C 2.1: iodine; 1-n-butyl-3-methylimidazolium tetrafluoroborate / 0.5 h / 20 °C 2.2: 20 °C View Scheme