1: xylene / Heating 2: 40 percent / xylene / Heating 3: 89 percent / Zn, aq. acetic acid 4: 54 percent / aq. sodium carbonate / tetrahydrofuran 5: diisobutylaluminum hydride 6: Amberlite CG 120 resin (H+ form) 7: 75 percent / sodium, liq. ammonia 8: H2O, OH- View Scheme