1: 3-Oxo-3-phenylpropanenitrile With lithium aluminium tetrahydride in tetrahydrofuran T=60°C; 2.25 h; Cooling with ice; 2: With water; sodium hydroxide in tetrahydrofuran T=20°C; 0.333333 h; Cooling with ice; 3: di-tert-butyl dicarbonate in tetrahydrofuran