1: 99 percent / acetonitrile / 1.5 h / Heating 2: 99 percent / Sodium borohydride / methanol; H2O / 1.) below 20 deg C, 2.) room temp., 1.5 h 3: 73 percent / Benzyltriethylammonium Permanganate / CH2Cl2 / 5 h / 20 °C 4: 61 percent / Aluminium chloride / 1,2-dichloro-ethane / 1.5 h / Heating 5: 71 percent / aniline / pyridine / 2 h / 60 °C 6: 72 percent / Copper powder, quinoline / 1 h / Heating View Scheme