2-(Chloroacetyl)thiophene → 4-((Bis(3-fluorophenyl)methoxy)carbonyl)-1-methyl-1-(2-oxo-2-(thiophen-2-yl)ethyl)piperidinium chloride

Participants

Reaction Steps

To a solution of bis(3-fluorophenyl)methyl 1-methylpiperidine-4-carboxylate (150 mg, 0.43 mmol) in ethyl acetate (5 ml), 2-chloro-1-(thiophen-2-yl)ethanone (69.8 mg, 0.43 mmol) was added, and the mixture was stirred at room temperature overnight. The solvent was removed under vacuum, and the residue was taken up in diethyl ether, filtered, and purified by flash chromatography (DCM/MeOH=95/5) to obtain 4-((bis(3-fluorophenyl)methoxy)carbonyl)-1-methyl-1-(2-oxo-2-(thiophen-2-yl)ethyl)piperidinium chloride (18 mg).

Provenance & Evidence