ammonium chloride; sodium 1.) diethyl ether, liquid NH3, -78 °C, 1 h; Yield given. Multistep reaction;

1: concd HCl / tetrahydrofuran; methanol 2: 95 percent / Li / tetrahydrofuran; liquid ammonia / 0.03 h / -78 °C / further reducing agent View Scheme

hydrogenchloride in methanol 0.5 h; Heating;

1: concd HCl / tetrahydrofuran; methanol 2: 95 percent / Li / tetrahydrofuran; liquid ammonia / 0.03 h / -78 °C / further reducing agent 3: 94 percent / AlCl3 / CS2 / 2 h / Ambient temperature View Scheme