potassium hydroxide Ambient temperature;

1: 64 percent / xylene / 2 h / Heating 2: 72 percent / CH2Cl2 / 1.) r.t., 1 h, 2.) reflux, 20 min 3: 84 percent / ethanol / 1 h / Heating 4: 68 percent / aq. KOH / Ambient temperature View Scheme

1: 72 percent / CH2Cl2 / 1.) r.t., 1 h, 2.) reflux, 20 min 2: 84 percent / ethanol / 1 h / Heating 3: 68 percent / aq. KOH / Ambient temperature View Scheme

1: 84 percent / ethanol / 1 h / Heating 2: 68 percent / aq. KOH / Ambient temperature View Scheme