sulfuric acid; nitric acid

iron; acetic acid 2 h;

1: 80 percent / Fe, Eisessig / 2 h 2: 85 percent / acetic anhydride / 5 h / Heating 3: 98 percent / konz. H2SO4, CrO3 / acetic acid / 1.5 h / 10 - 15 °C 4: 92 percent / 10percent HCl / 1 h / Heating View Scheme

1: 80 percent / Fe, Eisessig / 2 h 2: 85 percent / acetic anhydride / 5 h / Heating 3: 98 percent / konz. H2SO4, CrO3 / acetic acid / 1.5 h / 10 - 15 °C 4: 92 percent / 10percent HCl / 1 h / Heating 5: 78 percent / HBr, Eisessig, Pyridindibromid-hydrobromid / 60 °C 6: 98 percent / 1 h / 50 °C 7: 3percent NaOH / 1.5 h / Ambient temperature View Scheme

palladium on activated charcoal; ethanol Hydrogenation;

1: 80 percent / Fe, Eisessig / 2 h 2: 85 percent / acetic anhydride / 5 h / Heating 3: 98 percent / konz. H2SO4, CrO3 / acetic acid / 1.5 h / 10 - 15 °C 4: 92 percent / 10percent HCl / 1 h / Heating 5: 78 percent / HBr, Eisessig, Pyridindibromid-hydrobromid / 60 °C 6: 98 percent / 1 h / 50 °C 7: 3percent NaOH / 1.5 h / Ambient temperature 8: konz. H2SO4 / 4 h / Heating 9: 85 percent / LiAlH4 / diethyl ether / 2 h View Scheme

1: 80 percent / Fe, Eisessig / 2 h 2: 85 percent / acetic anhydride / 5 h / Heating 3: 98 percent / konz. H2SO4, CrO3 / acetic acid / 1.5 h / 10 - 15 °C 4: 92 percent / 10percent HCl / 1 h / Heating 5: 78 percent / HBr, Eisessig, Pyridindibromid-hydrobromid / 60 °C 6: 98 percent / 1 h / 50 °C 7: 3percent NaOH / 1.5 h / Ambient temperature 8: konz. H2SO4 / 4 h / Heating View Scheme

1: 80 percent / Fe, Eisessig / 2 h 2: 85 percent / acetic anhydride / 5 h / Heating View Scheme

1: 80 percent / Fe, Eisessig / 2 h 2: 85 percent / acetic anhydride / 5 h / Heating 3: 98 percent / konz. H2SO4, CrO3 / acetic acid / 1.5 h / 10 - 15 °C View Scheme

phosphorus tribromide; benzene