in water T=60°C; 3 h;

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 View Scheme

1: 55 percent / NH2OH 2: 96 percent / SnCl2 3: 71 percent / H2O / 0.25 h / 100 °C View Scheme

hydrogenchloride; water; tin(ll) chloride

1: 55 percent / NH2OH 2: 96 percent / SnCl2 View Scheme