silver(l) oxide 1.) H2O, 6 h, 2.) 60-90 deg C, 1E-3 mmHg, 30 min; to 120 deg C; Yield given. Multistep reaction;

Multi-step reaction with 3 steps 1: 57 percent / conc. aq. HCl / 2 h / 90 - 100 °C2: 1.) potassium tert-butoxide, 2.) 18-crown-6 ether / 1.) THF, 2.) 8-10 h3: diethyl ether