potassium ethylxanthate in water T=0°C;

1: 70 percent / HCl gas / POCl3 / 1.5 h / Heating 2: 68 percent / NH2NH2*H2O / glycerol / 6 h / Heating 3: 60 percent / dioxane / 4 h / Heating 5: 67 percent / C2H5OCSS(-)K(+) / H2O / 0 °C View Scheme

2: 70 percent / HCl gas / POCl3 / 1.5 h / Heating 3: 68 percent / NH2NH2*H2O / glycerol / 6 h / Heating 4: 60 percent / dioxane / 4 h / Heating 6: 67 percent / C2H5OCSS(-)K(+) / H2O / 0 °C View Scheme