1.1: H2 / Pd/C / ethanol / 20 °C 2.1: LiAlH4 / tetrahydrofuran / 0 - 20 °C 3.1: NaH / tetrahydrofuran / Heating 4.1: acetonitrile / Heating 5.1: n-BuLi / tetrahydrofuran; hexane / 0 °C 5.2: potassium tert-butoxide / tetrahydrofuran; hexane / 0 °C 5.3: 68 percent / tetrahydrofuran; hexane / -78 - 0 °C 6.1: 50 percent / H2 / Pd/C / ethanol / 20 °C / 760 Torr View Scheme