1: 95 percent / HNO3 / 0.02 h / 60 °C 2: 69 percent / 1) benzene, 90 min, reflux; 2) ethanol, 1 h 3: 89 percent / CH3ONa / methanol / 1 h View Scheme

1: 95 percent / HNO3 / 0.02 h / 60 °C 2: 69 percent / 1) benzene, 90 min, reflux; 2) ethanol, 1 h 3: 78 percent / CH3ONa / methanol / 1 h 4: 97 percent View Scheme

nitric acid T=60°C; 0.0166667 h;

1: 95 percent / HNO3 / 0.02 h / 60 °C 2: 69 percent / 1) benzene, 90 min, reflux; 2) ethanol, 1 h 3: 89 percent / CH3ONa / methanol / 1 h 5: 2 N HCl / 1 h View Scheme

1: 95 percent / HNO3 / 0.02 h / 60 °C 2: 69 percent / 1) benzene, 90 min, reflux; 2) ethanol, 1 h 3: 78 percent / CH3ONa / methanol / 1 h 4: 1) HCl (g); 2) NH3 (g) / 1) chloroform, ethanol, 7 d; 2) ether, ethanol, 7 d View Scheme

1: 95 percent / HNO3 / 0.02 h / 60 °C 2: 69 percent / 1) benzene, 90 min, reflux; 2) ethanol, 1 h 3: 78 percent / CH3ONa / methanol / 1 h 4: 2 N HCl View Scheme

1: 95 percent / HNO3 / 0.02 h / 60 °C 2: 69 percent / 1) benzene, 90 min, reflux; 2) ethanol, 1 h 3: 58 percent / 1) benzene, 3 h, reflux; 2) ethanol, 1 h 4: 69 percent / CH3ONa / methanol / 1 h 5: 1) HCl (g); 2) NH3 (g) / 1) chloroform, ethanol, 7 d; 2) ether, ethanol, 7 d View Scheme