1: 71 percent / n-BuLi / hexane; toluene / -78 deg C to RT 2: 89 percent / H2 / 10percent Pd-C / ethyl acetate / 1 h / 2327.2 Torr / Ambient temperature 3: 95 percent / HCl(g) / ethanol / 2 h / Heating View Scheme