1: 60 percent / potassium hydroxide / H2O / 48 h / Heating 2: 81 percent / hydrobromic acid, acetic anhydride / 24 h / Heating 3: 100 percent / diethyl ether 4: 85 percent / sulfur tetrafluoride 5: 90 percent / potassium hydroxide / H2O; ethanol 6: 72 percent / tert-butyl hypoiodite / Irradiation 7: 40 percent / tetrahydrofuran View Scheme

1: 60 percent / potassium hydroxide / H2O / 48 h / Heating 2: 81 percent / hydrobromic acid, acetic anhydride / 24 h / Heating 3: 100 percent / diethyl ether 4: 85 percent / sulfur tetrafluoride 5: 90 percent / potassium hydroxide / H2O; ethanol 6: 1.) thionyl chloride, 2.) NH3 / 2.) ether, 0 deg C, 20-30 min View Scheme

1: 60 percent / potassium hydroxide / H2O / 48 h / Heating 2: 81 percent / hydrobromic acid, acetic anhydride / 24 h / Heating 3: 100 percent / diethyl ether 4: 85 percent / sulfur tetrafluoride 5: 90 percent / potassium hydroxide / H2O; ethanol 6: 75 percent / borane-methyl sulfide View Scheme

1: 60 percent / potassium hydroxide / H2O / 48 h / Heating 2: 81 percent / hydrobromic acid, acetic anhydride / 24 h / Heating 3: 100 percent / diethyl ether 4: 85 percent / sulfur tetrafluoride 5: 90 percent / potassium hydroxide / H2O; ethanol 6: 72 percent / tert-butyl hypoiodite / Irradiation 7: 38 percent / 96 h / Irradiation 8: 64 percent / conc. nitric acid / acetic anhydride View Scheme

1: 60 percent / potassium hydroxide / H2O / 48 h / Heating 2: 81 percent / hydrobromic acid, acetic anhydride / 24 h / Heating 3: 100 percent / diethyl ether 4: 85 percent / sulfur tetrafluoride 5: 90 percent / potassium hydroxide / H2O; ethanol 6: 72 percent / tert-butyl hypoiodite / Irradiation 7: 38 percent / 96 h / Irradiation 8: 64 percent / conc. nitric acid / acetic anhydride 9: 57 percent / H2 / 5percent Pd/C / ethanol / 2585.7 Torr View Scheme

1: 60 percent / potassium hydroxide / H2O / 48 h / Heating 2: 81 percent / hydrobromic acid, acetic anhydride / 24 h / Heating 3: 100 percent / diethyl ether 4: 85 percent / sulfur tetrafluoride 5: 90 percent / potassium hydroxide / H2O; ethanol 6: 75 percent / borane-methyl sulfide 7: 90 percent View Scheme

1: 60 percent / potassium hydroxide / H2O / 48 h / Heating 2: 81 percent / hydrobromic acid, acetic anhydride / 24 h / Heating 3: 100 percent / diethyl ether 4: 85 percent / sulfur tetrafluoride 5: 90 percent / potassium hydroxide / H2O; ethanol 6: 1.) thionyl chloride, 2.) NH3 / 2.) ether, 0 deg C, 20-30 min 7: 68 percent / trifluoroacetic anhydride, pyridine / dioxane / 10 °C View Scheme

1: 60 percent / potassium hydroxide / H2O / 48 h / Heating 2: 81 percent / hydrobromic acid, acetic anhydride / 24 h / Heating 3: 100 percent / diethyl ether 4: 85 percent / sulfur tetrafluoride 5: 90 percent / potassium hydroxide / H2O; ethanol View Scheme

1: 60 percent / potassium hydroxide / H2O / 48 h / Heating 2: 81 percent / hydrobromic acid, acetic anhydride / 24 h / Heating 3: 100 percent / diethyl ether 4: 85 percent / sulfur tetrafluoride 5: 90 percent / potassium hydroxide / H2O; ethanol 6: 72 percent / tert-butyl hypoiodite / Irradiation 7: iodine monochloride / CCl3F / Ambient temperature View Scheme

1: 60 percent / potassium hydroxide / H2O / 48 h / Heating 2: 81 percent / hydrobromic acid, acetic anhydride / 24 h / Heating 3: 100 percent / diethyl ether 4: 85 percent / sulfur tetrafluoride 5: 90 percent / potassium hydroxide / H2O; ethanol 6: 72 percent / tert-butyl hypoiodite / Irradiation View Scheme