1.1: 95 percent / acetonitrile / 48 h / 90 °C 2.1: n-butyllithium / tetrahydrofuran; hexane / 0.5 h / 0 - 5 °C 2.2: tetrahydrofuran; hexane / 4 h / 20 °C 3.1: 100 percent / hydrogen / palladium on charcoal / methanol / 0.5 h / 3600.29 Torr View Scheme

1.1: n-butyllithium / tetrahydrofuran; hexane / 0.5 h / 0 - 5 °C 1.2: tetrahydrofuran; hexane / 4 h / 20 °C 2.1: 100 percent / hydrogen / palladium on charcoal / methanol / 0.5 h / 3600.29 Torr View Scheme