1.1: 81 percent / LiI / dimethylformamide / 12 h / Heating 2.1: n-BuLi / tetrahydrofuran; hexane / 1 h / 20 °C 2.2: 85 percent / tetrahydrofuran; hexane / 0 - 20 °C 3.1: Hg(OAc)2 / 25 h / 5 - 20 °C 3.2: 97 percent / NaOH; NaBH4 / H2O / 3 h / 0 - 20 °C 4.1: 90 percent / pyridinium chlorochromate / CH2Cl2 / 2 h / 20 °C View Scheme

1.1: 81 percent / LiI / dimethylformamide / 12 h / Heating 2.1: n-BuLi / tetrahydrofuran; hexane / 1 h / 20 °C 2.2: 85 percent / tetrahydrofuran; hexane / 0 - 20 °C View Scheme

1.1: 81 percent / LiI / dimethylformamide / 12 h / Heating 2.1: n-BuLi / tetrahydrofuran; hexane / 1 h / 20 °C 2.2: 85 percent / tetrahydrofuran; hexane / 0 - 20 °C 3.1: 90 percent / KOH / methanol / 4 h / Heating View Scheme

1.1: 81 percent / LiI / dimethylformamide / 12 h / Heating 2.1: n-BuLi / tetrahydrofuran; hexane / 1 h / 20 °C 2.2: 85 percent / tetrahydrofuran; hexane / 0 - 20 °C 3.1: 90 percent / KOH / methanol / 4 h / Heating 4.1: H2 / Pd/C / methanol / 5 h View Scheme

1.1: 81 percent / LiI / dimethylformamide / 12 h / Heating 2.1: n-BuLi / tetrahydrofuran; hexane / 1 h / 20 °C 2.2: 85 percent / tetrahydrofuran; hexane / 0 - 20 °C 3.1: 90 percent / KOH / methanol / 4 h / Heating View Scheme

lithium iodide in N,N-dimethyl-formamide 12 h; Heating;