hydrogenchloride; tin(ll) chloride T=80 - 90°C; 0.5 h;

1: 89 percent / KNO3, cc H2SO4, / 0.5 h / Ambient temperature 2: 78 percent / SnCl2*2H2O, cc HCl, / 0.5 h / 80 - 90 °C View Scheme

1: 1.) NaNO2, 20percent HCl, 2.) CuCl, cc HCl, / 1.) H2O, 5 to 10 deg C, 2.) 50 deg C, 1 h, 2: H2, / PtO2, / acetic acid / Ambient temperature View Scheme