hydrogen; nickel in methanol P=1034.3 Torr; 0.333333 h;

1: 62 percent / H2O / 1) room temperature, overnight, 2) steam bath, 2 h 2: conc. H2SO4 / 1 h / Heating 3: pyridine 4: H2 / Raney Nickel / methanol / 0.33 h / 1034.3 Torr View Scheme

1: pyridine 2: H2 / Raney Nickel / methanol / 0.33 h / 1034.3 Torr View Scheme

1: conc. H2SO4 / 1 h / Heating 2: pyridine 3: H2 / Raney Nickel / methanol / 0.33 h / 1034.3 Torr View Scheme