hydrogenchloride; SnCl2·2H2O in water T=50°C;

1: With pyridine; 4-(N,N-dimethlyamino)pyridine in ethanol 48 h; Inert atmosphereSchlenk techniqueReflux; 2: With pyrrolidine in ethanol T=20°C; 16 h; Inert atmosphereSchlenk techniqueReflux;

PPh3 gold(I) chloro complex; silver trifluoromethanesulfonate in acetonitrile T=50°C; 20 h; Inert atmosphere;

1: With pyridine; 4-(N,N-dimethlyamino)pyridine in ethanol 48 h; Heating; 2: With pyrrolidine in ethanol Heating; Further stages.;

ammonium hydroxide T=220°C;

ammonium hydroxide T=220°C;

1.1: palladium 10 on activated carbon; hydrogen / methanol / 2 h / 3102.97 Torr / |Schlenk technique; |Inert atmosphere 2.1: manganese(IV) oxide / dichloromethane / 1 h / 20 °C / |Inert atmosphere; |Schlenk technique 3.1: pyridine; 4-(N,N-dimethlyamino)pyridine / ethanol / 48 h / |Inert atmosphere; |Schlenk technique; |Reflux 3.2: 16 h / 20 °C / |Inert atmosphere; |Schlenk technique; |Reflux View Scheme

1.1: manganese(IV) oxide / dichloromethane / 1 h / 20 °C / |Inert atmosphere; |Schlenk technique 2.1: pyridine; 4-(N,N-dimethlyamino)pyridine / ethanol / 48 h / |Inert atmosphere; |Schlenk technique; |Reflux 2.2: 16 h / 20 °C / |Inert atmosphere; |Schlenk technique; |Reflux View Scheme

1.1: sodium tetrahydroborate / methanol / 0.5 h / 0 °C / |Inert atmosphere; |Schlenk technique 2.1: palladium 10 on activated carbon; hydrogen / methanol / 2 h / 3102.97 Torr / |Schlenk technique; |Inert atmosphere 3.1: manganese(IV) oxide / dichloromethane / 1 h / 20 °C / |Inert atmosphere; |Schlenk technique 4.1: pyridine; 4-(N,N-dimethlyamino)pyridine / ethanol / 48 h / |Inert atmosphere; |Schlenk technique; |Reflux 4.2: 16 h / 20 °C / |Inert atmosphere; |Schlenk technique; |Reflux View Scheme

hydrogenchloride; acetic acid; tin(ll) chloride