1: in acetonitrile T=50°C; P=7500600 Torr; 5 h; 2: With hydrogenchloride in water 0.166667 h;

1: 1,2-diamino-benzene With n-butyllithium in tetrahydrofuran T=-78°C; 12 h; 2: propionyl chloride in tetrahydrofuran T=-78 - 20°C; 4 h; 3: With lithium aluminium tetrahydride in tetrahydrofuran; diethyl ether T=40°C; 12 h;