1: 67 percent / Sm, HgCl2 / tetrahydrofuran / 31 - 40 °C 2: 82 percent / PCC / CH2Cl2 / 3 h / Ambient temperature 3: 1.) t-BuOK / 1.) THF, room temperature, 2 h, 2.) 30 min 4: 1.) n-BuLi / 1.) THF, hexane, 50 deg C, 15 min, 2.) -15 deg C, 20 min; 0 deg C, 30 min 5: 78 percent / LiAlH4, MeONa / tetrahydrofuran; methanol / 15 h / Ambient temperature 6: 98 percent / n-Bu4NF / tetrahydrofuran / 3 h / Ambient temperature 7: 1.) PPTS, 2.) t-BuOMe, 9-acetoxyanthracene / 1.) MeCN, H2O, 70 deg C, 2.5 h, 2.) irradiation, 2 h View Scheme

1: 58 percent / pyridine / Ambient temperature 2: 1.) Mg, cuprous iodide, 2.) n-Bu4NF 3: 82 percent / triethylamine, anthracene / benzene / 1 h / Irradiation View Scheme

1: 1.) hydrazine, 2.) dianisyl telluroxide / 1.) ethanol, reflux, overnight, 2.) water, CH2Cl2, 1,2-dibromotetrachloroethane, 5 h 2: 82 percent / triethylamine, anthracene / benzene / 1 h / Irradiation View Scheme

1: 1.) Mg, cuprous iodide, 2.) n-Bu4NF 2: 82 percent / triethylamine, anthracene / benzene / 1 h / Irradiation View Scheme

1: NaHCO3 / ethanol / 1 h / Heating 2: 1.) Mg, cuprous iodide, 2.) n-Bu4NF 3: 82 percent / triethylamine, anthracene / benzene / 1 h / Irradiation View Scheme

1.1: 1H-imidazole / dichloromethane; N,N-dimethyl-formamide / 24 h / 0 - 20 °C / Inert atmosphere 2.1: lead(IV) tetraacetate / dichloromethane / 1 h / -5 - 0 °C / Inert atmosphere 2.2: Inert atmosphere 3.1: pyridine; oxygen; ozone / dichloromethane / 3 h / -78 °C 3.2: 0.5 h / -78 °C 4.1: lithium aluminium tetrahydride / tetrahydrofuran / 2.5 h / 0 - 45 °C / Inert atmosphere 5.1: 4-(N,N-dimethlyamino)pyridine / dichloromethane / 3.5 h / 0 °C / Inert atmosphere 6.1: magnesium / tetrahydrofuran / 0.17 h / 50 °C / Inert atmosphere 6.2: 1 h / 0 - 20 °C / Inert atmosphere 7.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 10 h / 0 - 20 °C / Inert atmosphere 8.1: 1,4-dioxane / Irradiation 8.2: 100 °C View Scheme

1.1: 4-(N,N-dimethlyamino)pyridine / dichloromethane / 3.5 h / 0 °C / Inert atmosphere 2.1: magnesium / tetrahydrofuran / 0.17 h / 50 °C / Inert atmosphere 2.2: 1 h / 0 - 20 °C / Inert atmosphere 3.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 10 h / 0 - 20 °C / Inert atmosphere 4.1: 1,4-dioxane / Irradiation 4.2: 100 °C View Scheme

1.1: magnesium / tetrahydrofuran / 0.17 h / 50 °C / Inert atmosphere 1.2: 1 h / 0 - 20 °C / Inert atmosphere 2.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 10 h / 0 - 20 °C / Inert atmosphere 3.1: 1,4-dioxane / Irradiation 3.2: 100 °C View Scheme

1.1: lead(IV) tetraacetate / dichloromethane / 1 h / -5 - 0 °C / Inert atmosphere 1.2: Inert atmosphere 2.1: pyridine; oxygen; ozone / dichloromethane / 3 h / -78 °C 2.2: 0.5 h / -78 °C 3.1: lithium aluminium tetrahydride / tetrahydrofuran / 2.5 h / 0 - 45 °C / Inert atmosphere 4.1: 4-(N,N-dimethlyamino)pyridine / dichloromethane / 3.5 h / 0 °C / Inert atmosphere 5.1: magnesium / tetrahydrofuran / 0.17 h / 50 °C / Inert atmosphere 5.2: 1 h / 0 - 20 °C / Inert atmosphere 6.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 10 h / 0 - 20 °C / Inert atmosphere 7.1: 1,4-dioxane / Irradiation 7.2: 100 °C View Scheme

1.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 10 h / 0 - 20 °C / Inert atmosphere 2.1: 1,4-dioxane / Irradiation 2.2: 100 °C View Scheme