1: 1) KOH / 2) KI / 1) MeOH, r.t., 5 h, 2) r.t., 2 d 2: 91 percent / hydrogen / Raney-nickel / tetrahydrofuran / 32 h / 760 Torr / Ambient temperature 3: 96 percent / 3N HCl / methanol / 4 h / Heating 4: 1) Et3N, 2) air, HCl(g) / 2) Cu(OAc)2 / 1) CH2Cl2, 30 min, 2) CH2Cl2, 4 h 5: 84 percent / hydrogen / 5percent Pd-C / tetrahydrofuran / 1.5 h / Ambient temperature 6: 81 percent / conc. HNO3 / acetic acid / 0.5 h / Ambient temperature View Scheme