tert-butyl 4-[5-(isobutyrylamino)-2-methylphenyl]-3,6-dihydro-1(2H)-pyridinecarboxylate → Tert-butyl 4-[5-(isobutyrylamino)-2-methylphenyl]1-piperidinecarboxylate

Participants

Reaction Steps

A mixture of tert-butyl 4-[5-(isobutyrylamino)-2-methylphenyl]-3,6-dihydro-1(2H)-pyridinecarboxylate (335 mg, 0.93 mmol) and 10% Pd/C (35.0 mg) in EtOH (20.0 mL) was hydrogenated at room temperature overnight using the hydrogen balloon method. The reaction mixture was filtered through Celite and washed with ethanol (3×10 mL). The combined extracts were concentrated in vacuo to afford tert-butyl 4-[5-(isobutyrylamino)-2-methylphenyl]-1-piperidinecarboxylate (335 mg, 100%): ESMS m/e: 361.4 (M+H)+.

Provenance & Evidence