triethylamine; mercury dichloride in N,N-dimethyl-formamide T=25°C; Substitution; 4 h;

triethylamine in dichloromethane 2 h; Ambient temperature;

1: 1.) sodium hydroxide / 1.) dioxane, water, 2.) dioxane, water, room temperature 2: 88 percent / triethylamine / CH2Cl2 / 4 h / -65 - 20 °C 3: 100 percent / triethylamine / CH2Cl2 / 2 h / Ambient temperature View Scheme

1: 88 percent / triethylamine / CH2Cl2 / 4 h / -65 - 20 °C 2: 100 percent / triethylamine / CH2Cl2 / 2 h / Ambient temperature View Scheme