iron; acetic acid in ethanol 1 h;

hydrogenchloride; water in dichloromethane T=100°C; 24 h; Sealed tube;

1: AgNO2; dipotassium peroxodisulfate; palladium (II) trifluoroacetate / 1,2-dichloro-ethane / 48 h / 110 °C / |Schlenk technique; |Sealed tube 2: hydrogenchloride; water / dichloromethane / 24 h / 100 °C / |Sealed tube View Scheme

diethyl ether; NaCH(CO2Et)COCH3 anschl. mit wss. H2SO4;

1: thionyl chloride 2: sodium acetoacetic acid ethyl ester; diethyl ether / anschl. mit wss. H2SO4 View Scheme