1: 77 percent / H2 / [Rh(COD)dppb]BF4 / dimethylformamide / 18.5 h / 4137.29 Torr 2: LDA / tetrahydrofuran; hexane / 0.25 h / 0 °C 3: 55.4 mg / DIBAL / tetrahydrofuran / -78 - 0 °C 4: 87 percent / pyridine / CH2Cl2 / 0.33 h 5: 65 percent / Pd(PPh3)4 / dimethylformamide / 1.5 h / 10 °C 6: BCl3 / CH2Cl2 / 0.58 h / -78 - 20 °C View Scheme