sulfuryl dichloride T=20°C; 4 h;

pyridine; 2,6-di-tert-butyl-4-methyl-phenol; pyridine hydrogenfluoride; lithium chloride; tetrakis(triphenylphosphine) palladium(0) 1.) 1,4-dioxane, reflux, 68 h, 2.) THF, 23 deg C, 16 h; Yield given. Multistep reaction;