1: 86 percent / ammonium acetate 2: 80 percent / sodium borohydride / methanol 3: 50 percent / Zn, HCl / methanol / Heating 4: 85 percent 5: 70 percent / lithium aluminum hydride / tetrahydrofuran View Scheme

Multi-step reaction with 2 steps 1: 86 percent / ammonium acetate2: 80 percent / sodium borohydride / methanol