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