copper(l) iodide; palladium diacetate; caesium carbonate; 9,9-dimethyl-4,5-bis(diphenyl-phosphino)xanthene in 1,4-dioxane T=105°C; 12 h; Inert atmosphere;

tetraphosphorus decasulfide in pyridine Heating;

sodium dichromate; sulfuric acid in acetic acid