oxygen; copper(l) chloride; palladium dichloride in water; N,N-dimethyl-formamide 24 h; Ambient temperature;

1: CH2Cl2 / 1.) 0 deg C; 2.) room temp., 2.5 h 2: 50 percent / trifluoroacetic acid / 1 h / 0 °C 3: 67 percent / m-chloperbenzoic acid (MCPBA) / CH2Cl2 / 10 h / 0 °C 4: 67 percent / cuprous chloride (CuCl)-palladium chloride (PdCl2)-oxigen (O2) / dimethylformamide; H2O / 24 h / Ambient temperature View Scheme

1: 67 percent / m-chloperbenzoic acid (MCPBA) / CH2Cl2 / 10 h / 0 °C 2: 67 percent / cuprous chloride (CuCl)-palladium chloride (PdCl2)-oxigen (O2) / dimethylformamide; H2O / 24 h / Ambient temperature View Scheme

1: 50 percent / trifluoroacetic acid / 1 h / 0 °C 2: 67 percent / m-chloperbenzoic acid (MCPBA) / CH2Cl2 / 10 h / 0 °C 3: 67 percent / cuprous chloride (CuCl)-palladium chloride (PdCl2)-oxigen (O2) / dimethylformamide; H2O / 24 h / Ambient temperature View Scheme