tert-butyl 4-(1-methyl-1H-imidazol-2-yl)-3,6-dihydropyridine-1(2H)-carboxylate → Tert-butyl 4-(1-methyl-1H-imidazol-2-yl)piperidine-1-carboxylate

Participants

Reaction Steps

To a solution of tert-butyl 4-(1-methyl-1H-imidazol-2-yl)-3,6-dihydropyridine-1(2H)-carboxylate (398 mg) in MeOH (4.0 ml) was added 5% Pd/C (wet; 40 mg) and the mixture was stirred at room temperature for 7 hours under hydrogen atmosphere (1 atm). After removal of Pd/C with cerite, the filtrate was concentrated in vacuo. The resultant residue was purified by silica gel column (n-hexane:EtOAc=80:20 to EtOAc only) to give tert-butyl 4-(1-methyl-1H-imidazol-2-yl)piperidine-1-carboxylate (132 mg) as a colorless oil.

Provenance & Evidence