1: 51 percent / Mo[N(t-Bu)(3,5-diMePh)]3/CH2Cl2 / toluene; CH2Cl2 / 9 h / 80 °C 2: 87 percent / H2; quinoline / Lindlar catalyst / hexane / 760.05 Torr 3: 88 percent / aq. HF / tetrahydrofuran / 1 h View Scheme

1: 0.2368 g / aq. AcOH / tetrahydrofuran / 9 h / 20 °C 2: 96 percent / diisopropyl carbodiimide; DMAP / CH2Cl2 / 3 h / 20 °C 3: 77 percent / CH2Cl2 / Mo[N(t-Bu)(p-PhF)]3/CH2Cl2 / toluene / 16 h / 80 °C 4: 86 percent / H2; quinoline / Lindlar catalyst / hexane / 2 h / 760.05 Torr 5: 88 percent / aq. HF / acetonitrile / 1 h View Scheme