silver(l) oxide in chloroform T=40°C; 20 h;

1: 65 percent / fuming sulphuric acid (60percent SO3)/sulphur / 1.) 1 h, 2.) 50 deg C, 10 min, 3.) room temp., 18 h 2: 10 percent / Ag2O / CHCl3 / 20 h / 40 °C View Scheme