1: triethylamine / dichloromethane / 2 h / 0 - 20 °C 2: lithium chloride / Pd2(PPh3)2Cl2 / N,N-dimethyl-formamide / 4 h / 100 °C 3: hydrogen / palladium 10 on activated carbon / ethanol / 1 h / 20 °C 4: water; lithium hydroxide hydrate / tetrahydrofuran; methanol / 72 h / 20 °C View Scheme

1: lithium chloride / Pd2(PPh3)2Cl2 / N,N-dimethyl-formamide / 4 h / 100 °C 2: hydrogen / palladium 10 on activated carbon / ethanol / 1 h / 20 °C 3: water; lithium hydroxide hydrate / tetrahydrofuran; methanol / 72 h / 20 °C View Scheme

water; silver(l) oxide

1: water; hydrogen peroxide / anschliessenden Erwaermen mit Acetanhydrid 2: aqueous hydrochloric acid 3: diethyl ether; manganese (IV)-oxide 4: Ag2O; H2O View Scheme

1: hydrazine hydrate / 125 °C / Erhitzen des Reaktionsprodukts mit Kaliumhydroxid auf 150grad 2: water; hydrogen peroxide / anschliessenden Erwaermen mit Acetanhydrid 3: aqueous hydrochloric acid 4: diethyl ether; manganese (IV)-oxide 5: Ag2O; H2O View Scheme

1: diethyl ether; manganese (IV)-oxide 2: Ag2O; H2O View Scheme

1: aqueous hydrochloric acid 2: diethyl ether; manganese (IV)-oxide 3: Ag2O; H2O View Scheme