Tert-butyl 4-(4-nitro-2-(trifluoromethyl)phenoxy)piperidine-1-carboxylate → Tert-butyl 4-(4-amino-2-(trifluoromethyl)phenoxy)piperidine-1-carboxylate

Participants

Reaction Steps

To a solution of 4-(1-t-butoxycarbonylpiperidin-4-yloxy)-3-trifluoromethylnitrobenzene (2.28 g) in methanol (50 ml) was added palladium on carbon (0.20 g) and the mixture was stirred under a hydrogen atmosphere at room temperature for 5 hours. The reaction mixture was filtered and the filtrate concentrated in vacuo. The residue was purified by chromatography on a silica gel column using hexane/ethyl acetate=3/2 as an eluant to give the desired compound (1.69 g, yield 80%) as a pale red oil.

Provenance & Evidence