sodium chlorite; aminosulfonic acid in water; acetone T=25°C; 1 h;

hydrogenchloride; sodium hypochlorite; potassium bromide; 3'-phenoxy-4'-fluoro-α'-cyanobenzyl 2,2-dimethyl-3-(2,2-dichlorovinyl)-cyclopropane-carboxylate; sodium hydrogencarbonate; sodium thiosulfate; potassium bromide in dichloromethane

in acetone

1: 82 percent / aq. NaOH / 12 h / 25 °C 2: 80 percent / aq. NaOH / methanol / 12 h / Heating 3: 87.7 percent / Et3N; SO3*pyridine / CHCl3; dimethylsulfoxide / 12 h / 25 °C 4: 85 percent / NaClO2; NH2SO3H / acetone; H2O / 1 h / 25 °C View Scheme

1: 75.9 percent / SOCl2 / 1 h / 25 °C 2: 62.8 percent / Zn; conc. HCl / H2O / 70 - 80 °C 3: 82 percent / aq. NaOH / 12 h / 25 °C 4: 80 percent / aq. NaOH / methanol / 12 h / Heating 5: 87.7 percent / Et3N; SO3*pyridine / CHCl3; dimethylsulfoxide / 12 h / 25 °C 6: 85 percent / NaClO2; NH2SO3H / acetone; H2O / 1 h / 25 °C View Scheme

1: 62.8 percent / Zn; conc. HCl / H2O / 70 - 80 °C 2: 82 percent / aq. NaOH / 12 h / 25 °C 3: 80 percent / aq. NaOH / methanol / 12 h / Heating 4: 87.7 percent / Et3N; SO3*pyridine / CHCl3; dimethylsulfoxide / 12 h / 25 °C 5: 85 percent / NaClO2; NH2SO3H / acetone; H2O / 1 h / 25 °C View Scheme

1: 80 percent / aq. NaOH / methanol / 12 h / Heating 2: 87.7 percent / Et3N; SO3*pyridine / CHCl3; dimethylsulfoxide / 12 h / 25 °C 3: 85 percent / NaClO2; NH2SO3H / acetone; H2O / 1 h / 25 °C View Scheme

dicyclohexyl-carbodiimide; 4-(N,N-dimethlyamino)pyridine in dichloromethane 24 h;