1.1: NaH / tetrahydrofuran / 1 h / 20 °C 1.2: 84.4 percent / tetrahydrofuran / 3 h / Heating 2.1: 78.3 percent / LiAlH4 / tetrahydrofuran / 5 - 20 °C 3.1: NaH / tetrahydrofuran / 20 °C 3.2: tetrahydrofuran / Heating 4.1: 82.3 percent / LiAlH4 / tetrahydrofuran / 5 - 20 °C View Scheme

1.1: NaH / tetrahydrofuran / 20 °C 1.2: tetrahydrofuran / Heating 2.1: 82.3 percent / LiAlH4 / tetrahydrofuran / 5 - 20 °C View Scheme

1.1: 87.2 percent / LiAlH4 / tetrahydrofuran / 5 - 20 °C 2.1: NaH / tetrahydrofuran / 1 h / 20 °C 2.2: 84.4 percent / tetrahydrofuran / 3 h / Heating 3.1: 78.3 percent / LiAlH4 / tetrahydrofuran / 5 - 20 °C 4.1: NaH / tetrahydrofuran / 20 °C 4.2: tetrahydrofuran / Heating 5.1: 82.3 percent / LiAlH4 / tetrahydrofuran / 5 - 20 °C View Scheme

1.1: 78.1 percent / dimethylsulfoxide / 25 °C 2.1: 87.2 percent / LiAlH4 / tetrahydrofuran / 5 - 20 °C 3.1: NaH / tetrahydrofuran / 1 h / 20 °C 3.2: 84.4 percent / tetrahydrofuran / 3 h / Heating 4.1: 78.3 percent / LiAlH4 / tetrahydrofuran / 5 - 20 °C 5.1: NaH / tetrahydrofuran / 20 °C 5.2: tetrahydrofuran / Heating 6.1: 82.3 percent / LiAlH4 / tetrahydrofuran / 5 - 20 °C View Scheme

1.1: 78.3 percent / LiAlH4 / tetrahydrofuran / 5 - 20 °C 2.1: NaH / tetrahydrofuran / 20 °C 2.2: tetrahydrofuran / Heating 3.1: 82.3 percent / LiAlH4 / tetrahydrofuran / 5 - 20 °C View Scheme