反应详情

To a mixture of tert-butyl 4-(2-methoxy-4-nitrophenyl)-3,6-dihydropyridine-1(2H)-carboxylate (Preparation Example 412) (2.21 g), ethanol (40 mL) and THF (20 mL), 10% palladium on carbon (1.0 g) was added and stirred at room temperature for 3 hours under a hydrogen atmosphere at normal pressure. After filtration through celite, the filtrate was distilled off under reduced pressure to give tert-butyl 4-(4-amino-2-methoxy-phenyl)piperidine-1-carboxylate (1.97 g) as a gray solid.

1. additionwas added
2. filtrationAfter filtration through celite
3. distillationthe filtrate was distilled off under reduced pressure