tin(ll) chloride in ethyl acetate 10 h; Heating;

1: 98 percent / HNO3 / nitrobenzene / 1 h / Ambient temperature 2: 90 percent / 1.) 2.5N NaOH / ethanol / 2 h / 80 °C 3: 87 percent / conc. H2SO4 / 10 h / 90 °C 4: 82 percent / SnCl2 / ethyl acetate / 10 h / Heating View Scheme

1: 95 percent / N-benzyltrimethylammonium (triton B) / 0.33 h / 0 °C 2: 98 percent / HNO3 / nitrobenzene / 1 h / Ambient temperature 3: 90 percent / 1.) 2.5N NaOH / ethanol / 2 h / 80 °C 4: 87 percent / conc. H2SO4 / 10 h / 90 °C 5: 82 percent / SnCl2 / ethyl acetate / 10 h / Heating View Scheme