Multi-step reaction with 9 steps
1: 92 percent / diethyl ether / Ambient temperature
2: 98 percent / 1M-sodium hydroxide / H2O / 1 h / Heating
3: 98 percent / thionyl chloride / 1 h / Heating
4: 58 percent / diethyl ether / Ambient temperature
5: 95 percent / 0.5M-sulphuric acid / dioxane; H2O / 0.75 h / Heating
6: 98 percent / 1.) hydrazine hydrate, 2.) 0.2M-hydrochloric acid / ethanol / 1.) 2 h, reflux, 2.) r.t. HCl, 5 min reflux
7: 97 percent / sodium hydrogen carbonate / methanol; H2O / r.t. water, 1 h then 35 deg C,
8: 48 percent / triethylamine / ethanol / 22 h / Heating
9: 97 percent / 2M-hydrochloric acid, / H2O / 0.13 h / Heating; 1.) 8 min, refux
With
hydrogenchloride; sodium hydroxide; thionyl chloride; sulfuric acid; sodium hydrogencarbonate; hydrazine hydrate; triethylamine;
In
1,4-dioxane; methanol; diethyl ether; ethanol; water;