1: 1) AlCl3, NaCl, 2) conc. HCl, H2O / 1) melt, 180 deg C, 2) 0 deg C, 3 h 2: 90 percent / Zn / pyridine 3: 91 percent / NaOAc, H2 / Pd/C (10 percent Pd) / methanol / 10 h / 40 - 45 °C / Irradiation 4: 73 percent / 1) 2 N NaOH, 2) FeCl3*6H2O/HCl / 1) MeOH, reflux, 2) H2O 5: Na2S2O4 / diethyl ether; CHCl3; H2O 6: 81 percent / 1) HCl, 2) H2O / 1) 15 min 7: 80 mg / Pb2O / CHCl3 / 0.08 h 8: 94 percent / HNO3 (65 percent) / 0.03 h View Scheme

1: 73 percent / 1) 2 N NaOH, 2) FeCl3*6H2O/HCl / 1) MeOH, reflux, 2) H2O 2: Na2S2O4 / diethyl ether; CHCl3; H2O 3: 81 percent / 1) HCl, 2) H2O / 1) 15 min 4: 80 mg / Pb2O / CHCl3 / 0.08 h 5: 94 percent / HNO3 (65 percent) / 0.03 h View Scheme

1: Na2S2O4 / diethyl ether; CHCl3; H2O 2: 81 percent / 1) HCl, 2) H2O / 1) 15 min 3: 80 mg / Pb2O / CHCl3 / 0.08 h 4: 94 percent / HNO3 (65 percent) / 0.03 h View Scheme

1: 90 percent / Zn / pyridine 2: 91 percent / NaOAc, H2 / Pd/C (10 percent Pd) / methanol / 10 h / 40 - 45 °C / Irradiation 3: 73 percent / 1) 2 N NaOH, 2) FeCl3*6H2O/HCl / 1) MeOH, reflux, 2) H2O 4: Na2S2O4 / diethyl ether; CHCl3; H2O 5: 81 percent / 1) HCl, 2) H2O / 1) 15 min 6: 80 mg / Pb2O / CHCl3 / 0.08 h 7: 94 percent / HNO3 (65 percent) / 0.03 h View Scheme

1: 91 percent / NaOAc, H2 / Pd/C (10 percent Pd) / methanol / 10 h / 40 - 45 °C / Irradiation 2: 73 percent / 1) 2 N NaOH, 2) FeCl3*6H2O/HCl / 1) MeOH, reflux, 2) H2O 3: Na2S2O4 / diethyl ether; CHCl3; H2O 4: 81 percent / 1) HCl, 2) H2O / 1) 15 min 5: 80 mg / Pb2O / CHCl3 / 0.08 h 6: 94 percent / HNO3 (65 percent) / 0.03 h View Scheme

nitric acid 0.0333333 h;

1: Na2S2O4 / diethyl ether; CHCl3; H2O 2: 88 percent / K2CO3/KI / various solvent(s) / 20 h / 120 °C 3: 91 percent / NaOH (aq.) / dioxane / 1) room temperature, 10 min, 2) 50 deg C, 5 min 4: 83 percent / H2 / Pd/C (10 percent Pd) / methanol / Ambient temperature 5: 80 mg / Pb2O / CHCl3 / 0.08 h 6: 94 percent / HNO3 (65 percent) / 0.03 h View Scheme

1: 88 percent / K2CO3/KI / various solvent(s) / 20 h / 120 °C 2: 91 percent / NaOH (aq.) / dioxane / 1) room temperature, 10 min, 2) 50 deg C, 5 min 3: 83 percent / H2 / Pd/C (10 percent Pd) / methanol / Ambient temperature 4: 80 mg / Pb2O / CHCl3 / 0.08 h 5: 94 percent / HNO3 (65 percent) / 0.03 h View Scheme

1: 90 percent / H2 / Pd/C (10 percent Pd) / methanol / Ambient temperature 2: 80 mg / Pb2O / CHCl3 / 0.08 h 3: 94 percent / HNO3 (65 percent) / 0.03 h View Scheme

1: 91 percent / NaOH (aq.) / dioxane / 1) room temperature, 10 min, 2) 50 deg C, 5 min 2: 83 percent / H2 / Pd/C (10 percent Pd) / methanol / Ambient temperature 3: 80 mg / Pb2O / CHCl3 / 0.08 h 4: 94 percent / HNO3 (65 percent) / 0.03 h View Scheme