in acetic acid 2 h; Heating;

[(η5-C5Me5)2Rh2(μ-Cl)2Cl2]; sodium acetate; acetic acid; pentan-3-one in ethanol T=110°C; 20 h; Sealed tubeInert atmosphere; regioselective reaction;

1: methanol / 10 h / Heating 2: polyphosphoric acid / 3 h / 120 °C View Scheme

1.1: hydrogenchloride; sodium nitrite / water / 1 h / 0 - 5 °C / |Cooling with ice 1.2: 0 - 20 °C 2.1: pentan-3-one; [(η5-C5Me5)2Rh2(μ-Cl)2Cl2]; sodium acetate; acetic acid / ethanol / 20 h / 110 °C / |Sealed tube; |Inert atmosphere View Scheme

und Erwaermen des Reaktionsgemisches mit Chlorwasserstoff enthaltendem Aethanol;