sodium hydroxide; copper(l) iodide; tetrakis(triphenylphosphine) palladium(0); N-benzyl-N,N,N-triethylammonium chloride in benzene T=5°C; 3 h;

1: 2-(dicyclohexylphosphino)-2',4',6'-tri-i-propyl-1,1’-biphenyl; potassium carbonate; palladium diacetate / acetonitrile; water / 24 h / 20 °C / |Inert atmosphere 2: tetrabutylammomium bromide; 2,2,6,6-tetramethyl-1-piperidinyloxy, free radical; Oxonereg; / dichloromethane; acetone / 20 °C View Scheme