hydrogen; palladium 10 on activated carbon in methanol T=20°C; 18 h;

1: in dichloromethane T=20°C; 1 h; 2: With sodium tris(acetoxy)borohydride in dichloromethane T=0 - 20°C; 3 h; 3: With hydrogenchloride; sodium hydroxide Product distribution / selectivity; more than 3 stages;