1: With hydrogen bromide in water 3 h; Heating / reflux; 2: With sodium hydroxide in water T=20°C; pH=3; 3: With tributyl-amine in 2-methyl-propan-1-ol T=2°C; 1 h; Product distribution / selectivity;
1: With hydrogen; palladium 10 on activated carbon in acetic acid T=25°C; P=760.051 - 3800.26 Torr; 2.4 h; 2: With hydrogenchloride; water 3 h; Heating / reflux; 3: With Dowex 50W Product distribution / selectivity;
