1: 1.) NH2NH2 2.) KOH / 1.) H2O 2.) heating 2: SnCl4 / benzene 3: BF3*Et2O / CHCl3 4: 80 percent / Raney nickel (W6) / ethanol / Heating 5: LAH / tetrahydrofuran View Scheme

1: 1.) NH2NH2 2.) KOH / 1.) H2O 2.) heating 2: SnCl4 / benzene 3: BF3*Et2O / CHCl3 4: 80 percent / Raney nickel (W6) / ethanol / Heating View Scheme

potassium hydroxide; hydrazine 1.) H2O 2.) heating; Multistep reaction;