hydrogen; palladium 10 on activated carbon in tetrahydrofuran; ethanol P=760.051 Torr;

1: in 1,2-dichloro-ethane T=50°C; 6 h; 2: With methanol in 1,2-dichloro-ethane T=20°C;

in water; acetonitrile T=70°C; 1 h;

1: With potassium carbonate in water T=10°C; 2: methylamine in water; acetonitrile T=0 - 5°C; 3: 1-benzyl-piperazine; phenyl chloroformate With sodium hydroxide more than 3 stages;