1: 90 percent / acetic acid / 1.) room temp., 0.5 h, 2.) 80 deg C (oil bath), 0.5 h 2: 66 percent / HCl aq. / acetic acid / 8 h / Heating View Scheme

hydrogenchloride 1.) glacial acetic acid, 70 deg C (oil bath), 1 h, 2.) reflux, 8 h; Yield given. Multistep reaction;