1: 48 percent HBr / acetone; H2O / 3 h 2: 71.2 percent / H2O / 25.5 h View Scheme

in ethanol 8 h; Reflux; Solvent;

potassium hydroxide T=50 - 55°C; 4 h;

1: 93.4 percent / AlCl3 / nitrobenzene / 4.5 h / 25 - 30 °C 2: 85 percent KOH / 4 h / 50 - 55 °C View Scheme

1: 91.6 percent / KHCO3 / acetone / 48 h / 20 - 30 °C 2: 93.4 percent / AlCl3 / nitrobenzene / 4.5 h / 25 - 30 °C 3: 85 percent KOH / 4 h / 50 - 55 °C View Scheme

1: 91.6 percent / KHCO3 / acetone / 48 h / 20 - 30 °C 2: 93.4 percent / AlCl3 / nitrobenzene / 4.5 h / 25 - 30 °C 3: 85 percent KOH / 4 h / 50 - 55 °C View Scheme

1: AlCl3, aluminium chloride; sodium chloride / 3 h / 140 °C 2: sodium hydroxide / dimethyl sulfoxide / 12 h / 50 °C View Scheme

1.1: sodium hydroxide / water / 10 h / 140 °C / 2250.23 Torr / |Autoclave 1.2: 0.5 h / 80 °C 2.1: 5 Pd/C; hydrogen / ethyl acetate / 6.5 h / 65 °C / 3750.38 Torr 3.1: sodium hydrogencarbonate / acetone / 30 °C / |Reflux 4.1: AlCl3, aluminium chloride; sodium chloride / 3 h / 140 °C 5.1: sodium hydroxide / dimethyl sulfoxide / 12 h / 50 °C View Scheme

1: 5 Pd/C; hydrogen / ethyl acetate / 6.5 h / 65 °C / 3750.38 Torr 2: sodium hydrogencarbonate / acetone / 30 °C / |Reflux 3: AlCl3, aluminium chloride; sodium chloride / 3 h / 140 °C 4: sodium hydroxide / dimethyl sulfoxide / 12 h / 50 °C View Scheme

1: sodium hydrogencarbonate / acetone / 30 °C / |Reflux 2: AlCl3, aluminium chloride; sodium chloride / 3 h / 140 °C 3: sodium hydroxide / dimethyl sulfoxide / 12 h / 50 °C View Scheme