in ethanol 1 h; Heating;

1: 67 percent / 20percent hydrochloric acid / ethanol / 16 h / Heating 2: 64 percent / ethanol / 1 h / Heating View Scheme

1: 67 percent / 20percent hydrochloric acid / ethanol / 16 h / Heating 2: 64 percent / ethanol / 1 h / Heating View Scheme

1: 2.) sodium ethoxide / 1.) acetic acid, reflux, 10 h, 2.) ethanol, heated. 2: 67 percent / 20percent hydrochloric acid / ethanol / 16 h / Heating 3: 64 percent / ethanol / 1 h / Heating View Scheme