1: 1.) ozone; 2.) 40percent peroxyacetic acid / 1.) ethyl acetate, -20 degC, 7 min; 2.) water, 8 h, r.t. 2: 48.1 percent / silver nitrate, sodium hydroxide / H2O; ethanol; diethyl ether / 1 h / Heating 3: 54.7 percent / benzene / 2.25 h / Heating View Scheme