oxygen; copper dichloride; palladium dichloride in water; N,N-dimethyl-formamide T=70°C; 1) 150 min, 2) 1 h;

1: 51 percent / oxygen / palladium chloride, copper(II) chloride / dimethylformamide; H2O / 70 °C / 1) 150 min, 2) 1 h 2: 87 percent / sodium hydroxide / methanol / 3 h / 15 °C View Scheme

oxygen; copper dichloride; palladium dichloride in water; N,N-dimethyl-formamide T=70°C; 1) 150 min, 2) 1 h;