Triphenylphosphine → HCID 18542820, compound

Participants

Reaction Steps

To a solution of 1-t-butoxycarbonyl-4-hydroxypiperidine (3.02 g), 2-methoxy-4-nitrophenol (2.54 g) and triphenylphosphine (10.20 g) in dichloromethane (60 ml) was added dropwise diethyl azodicarboxylate (3.1 ml) in an ice bath and the mixture was stirred at room temperature for 20 hours. The reaction mixture was concentrated in vacuo. The residue was purified by chromatography on a silica gel column using hexane/ethyl acetate=5/2 as an eluant to give the desired compound (4.36 g, yield 82%) as a pale yellow oil.

Provenance & Evidence