sodium chloride in dimethyl sulfoxide T=155 - 160°C; 2 h;

1: 78 percent / Et3N / 3 h / 130 °C 2: 85 percent / NaCl / dimethylsulfoxide / 2 h / 155 - 160 °C View Scheme

1: 54 percent / Na2CO3 / H2O / RT, 1 h, 40/50 deg C, 8 h 2: 78 percent / Et3N / 3 h / 130 °C 3: 85 percent / NaCl / dimethylsulfoxide / 2 h / 155 - 160 °C View Scheme