1.1: 2,4,6-trimethyl-pyridine; 4-(N,N-dimethlyamino)pyridine / dichloromethane / 0.5 h / 20 °C / Cooling with acetonitrile-dry ice 2.1: iron (III) acetylacetonate / tetrahydrofuran; 1-methyl-pyrrolidin-2-one / 0.25 h / 20 °C 3.1: sodium hydroxide; ethanol; water / 1 h / 75 °C 3.2: 0 - 20 °C View Scheme
1.1: iron (III) acetylacetonate / tetrahydrofuran; 1-methyl-pyrrolidin-2-one / 0.25 h / 20 °C 2.1: sodium hydroxide; ethanol; water / 1 h / 75 °C 2.2: 0 - 20 °C View Scheme
