dimethyl sulfoxide; 1-hydroxy-3H-benz[d][1,2]iodoxole-1,3-dione T=20°C; 8 h;

N-benzyl-N,N,N-triethylammonium chloride; palladium diacetate; sodium hydrogencarbonate in N,N-dimethyl-formamide T=40°C; 24 h; Inert atmosphere;