sodium acetate; acetic anhydride T=110°C; 3 h;

sodium acetate; acetic anhydride T=110°C; 3 h;

1: sodium acetate / acetic anhydride / 18 h / Reflux 2: [Ru(η4-COD)(η3-methylallyl)2]; potassium tert-butylate; hydrogen; ICy*HCl / hexane / 18 h / 60 °C / 48754.9 Torr / Autoclave View Scheme

1.1: NaOAc; Ac2O / 3 h / 160 °C 2.1: SeO2 / dioxane / 48 h / Heating 3.1: NaBH4 / methanol / 20 °C 4.1: SOCl2; benzotriazole / CH2Cl2 5.1: NaH / dimethylformamide; various solvent(s) / 0.5 h / 20 °C 5.2: 81 percent / dimethylformamide; various solvent(s) / 7 h / 20 - 60 °C 6.1: NaOH / methanol / 20 h / 20 °C 7.1: p-xylene / 2 h / Heating 8.1: 92 percent / aq. HCl / 4 h / Heating View Scheme

1: 62 percent / CH3CO2Na, Ac2O / 3 h / 160 °C 2: 52 percent / AlCl3 / CS2 / 1) 2 h, 5 deg C, 2) 12 h, r.t. View Scheme

1: NaOAc; Ac2O / 3 h / 160 °C 2: SeO2 / dioxane / 48 h / Heating 3: NaBH4 / methanol / 20 °C 4: SOCl2; benzotriazole / CH2Cl2 View Scheme

in acetonitrile 0.2 h; Irradiation;

in acetonitrile 2 h; Irradiation;

1: NaOAc; Ac2O / 3 h / 160 °C 2: SeO2 / dioxane / 48 h / Heating 3: NaBH4 / methanol / 20 °C View Scheme