反应详情

5-nitro-3′,6′-dihydro-2′H-[2,4′]bipyridinyl-1′-carboxylic acid tert-butyl ester (400 mg) from above was dissolved in methanol (50 mL) and tetrahydrofuran (10 mL). To this mixture was added 10% palladium on carbon (100 mg). The mixture was hydrogenated at 50 psi for 2 hrs. The mixture was filtered and the solvents were evaporated to give 5-amino-3′,4′,5′,6′-tetrahydro-2′H-[2,4′]bipyridinyl-1′-carboxylic acid tert-butyl ester as a white solid (363 mg). The NMR spectrum obtained on the sample is compatible with its structure.

1. filtrationThe mixture was filtered
2. customthe solvents were evaporated