hydrogenchloride; water; tin(ll) chloride

sodium dithionite in water; N,N-dimethyl-formamide Heating;

1: Raney nickel; methanol / Hydrogenation.Diazotieren in wss. HCl und anschliessendes Behandeln mit der Kalium-Verbindung des Nitromethans und wss.-aethanol. KOH 2: aqueous HCl 3: basic anion exchanger; THF 4: iron-powder; water; acetic acid View Scheme

1: 88 percent / NH2OH*HCl, Na2CO3 / ethanol / Ambient temperature 2: 91 percent / NaOEt / ethanol / Ambient temperature 3: 97 percent / NaH / dimethylformamide / 100 °C 4: 98 percent / NH2NH2*H2O / ethanol / Heating 5: 48 percent / Na2S2O4 / dimethylformamide; H2O / Heating View Scheme

1: 91 percent / NaOEt / ethanol / Ambient temperature 2: 97 percent / NaH / dimethylformamide / 100 °C 3: 98 percent / NH2NH2*H2O / ethanol / Heating 4: 48 percent / Na2S2O4 / dimethylformamide; H2O / Heating View Scheme

ammonia; water; copper(II) sulfate

ammonia; water; copper(II) sulfate