trifluoroacetic acid in dichloromethane T=20°C; 5 h;

1: LiAlH4 / diethyl ether 2: (i) , (ii) NH3 View Scheme

1: lithium aluminium tetrahydride / dichloromethane / 24 h / Reflux 2: trifluoroacetic acid / dichloromethane / 5 h / 20 °C View Scheme

1.1: lithium diisopropyl amide / tetrahydrofuran / 0.25 h / -15 - 5 °C / Inert atmosphere 1.2: 0.5 h / 5 °C / Inert atmosphere 1.3: 2 h / 20 °C / Inert atmosphere 2.1: lithium aluminium tetrahydride / dichloromethane / 24 h / Reflux 3.1: trifluoroacetic acid / dichloromethane / 5 h / 20 °C View Scheme

(i) , (ii) NH3; Multistep reaction;