Tert-butyl 4-{4-[3-(2-methoxybenzyloxy)propoxy]phenyl}-3-(3-nitrobenzyloxy)piperidine-1-carboxylate → Tert-butyl 3-(3-aminobenzyloxy)-4-{4-[3-(2-methoxybenzyloxy)propoxy]phenyl}piperidine-1-carboxylate

Participants

Reaction Steps

The solution of 0.710 g of tert-butyl 4-{4-[3-(2-methoxybenzyloxy)propoxy]phenyl}-3-(3-nitrobenzyloxy)piperidine-1-carboxylate in 10 ml of tetrahydrofuran is hydrogenated in the presence of 0.190 g of Raney nickel over 20 hours. The reaction mixture is filtered and the filtrate is concentrated by evaporation. The title compound is obtained as a yellowish oil from the residue by means of flash chromatography (SiO2 60F). Rf=0.14 (1:2 EtOAc-heptane); Rt=4.93.

Provenance & Evidence