copper(l) iodide; 1,10-phenanthroline; caesium carbonate; toluene-4-sulfonamide in 1,4-dioxane T=20 - 100°C; 18.25 h; Inert atmosphere;

copper(l) iodide; 1,10-phenanthroline; caesium carbonate; ethanethiolic acid in 1,4-dioxane T=20 - 100°C; 13.25 h; Inert atmosphere;