tert-Butyl 5',6'-dihydro-[2,4'-bipyridine]-1'(2'H)-carboxylate → tert-Butyl 4-(pyridin-2-yl)piperidine-1-carboxylate

Participants

Reaction Steps

Tert-butyl 4-(pyridin-2-yl)-5,6-dihydropyridine-1(2H)-carboxylate (0.150 g, 0.576 mmol) was dissolved in ethanol (2 mL) and acetic acid (0.2 mL). The reaction mixture was hydrogenated with Pd/C (10%) in an H-cubemapparatus at about 60° C. for about 3 minutes. The solvent was removed in vacuo to give tert-butyl 4-(pyridin-2-yl)piperidine-1-carboxylate (0.151 g, 0.576 mmol) as white solid which was used in subsequent reactions without further purification. RP-HPLC (Table 1, Method b) Rt 1.97 min; m/z: (M+H)+ 263.

Provenance & Evidence