triethylamine in N,N-dimethyl-formamide 2 h; Heating;

sodium hydroxide

1: K2CO3 2: aq. NaOH View Scheme

1.1: 84 percent / p-TsOH / 2 h / Heating 2.1: 66 percent / SnCl2*2H2O / methanol / Heating 3.1: aq. H2SO4; aq. NaNO2 / 0.5 h / 0 - 5 °C 3.2: NaBF4 / H2O / 0.5 h / 0 °C 3.3: 62 percent / H2O; m-xylene / 0.5 h / Heating 4.1: 90 percent / HNO3; H2SO4 / 0.67 h / 20 °C 5.1: 89 percent / KI; AcCl / acetic acid / 0.67 h / 20 °C 6.1: 95 percent / Fe powder; NH4Cl / H2O; toluene / 0.5 h / Heating View Scheme

toluene-4-sulfonic acid 2 h; Heating;