1: 80 percent / AlCl3 / 1,2-dichloro-ethane / 36 h 2: 80 percent / H2O, KOH / methanol / 3 h / Heating 3: thionylchloride / 3 h / Heating 4: 65 percent / petroleum ether / 29 h / Ambient temperature 5: 27 percent / acetonitrile / 15 min, cooling; 12 h room temperature View Scheme

1: 80 percent / AlCl3 / 1,2-dichloro-ethane / 36 h 2: 80 percent / H2O, KOH / methanol / 3 h / Heating 3: thionylchloride / 3 h / Heating 4: 65 percent / petroleum ether / 29 h / Ambient temperature 5: 27 percent / acetonitrile / 15 min, cooling; 12 h room temperature View Scheme

1: thionylchloride / 3 h / Heating 2: 65 percent / petroleum ether / 29 h / Ambient temperature 3: 27 percent / acetonitrile / 15 min, cooling; 12 h room temperature View Scheme

1: 80 percent / H2O, KOH / methanol / 3 h / Heating 2: thionylchloride / 3 h / Heating 3: 65 percent / petroleum ether / 29 h / Ambient temperature 4: 27 percent / acetonitrile / 15 min, cooling; 12 h room temperature View Scheme

in acetonitrile 15 min, cooling; 12 h room temperature;

1: 65 percent / petroleum ether / 29 h / Ambient temperature 2: 27 percent / acetonitrile / 15 min, cooling; 12 h room temperature View Scheme