1: SnCl4 / tetrahydrofuran 2: NH2NH2*H2O, KOH / various solvent(s) / 4 h / 210 °C 3: 80 percent / LiAlH4 / tetrahydrofuran / 1 h / Ambient temperature 4: potassium tert-butoxide / 2-methyl-propan-2-ol / 16 h / Heating View Scheme

1: 80 percent / LiAlH4 / tetrahydrofuran / 1 h / Ambient temperature 2: potassium tert-butoxide / 2-methyl-propan-2-ol / 16 h / Heating View Scheme

1: SnCl4 / tetrahydrofuran 2: NH2NH2*H2O, KOH / various solvent(s) / 4 h / 210 °C 3: 80 percent / LiAlH4 / tetrahydrofuran / 1 h / Ambient temperature 4: potassium tert-butoxide / 2-methyl-propan-2-ol / 16 h / Heating View Scheme

potassium tert-butylate in tert-butyl alcohol 16 h; Heating;