Trifluoroacetic acid → Piperidin-4-yl acetate

Participants

Reaction Conditions

Reaction Steps

3 ml of trifluoroacetic acid are added to a solution of 3.18 g of 2-methylpropan-2-yl 4-(acetyloxy)piperidine-1-carboxylate in 40 ml of dichloromethane, cooled to 0° C. The reaction medium is stirred for 1 hour at 0° C. and then 1 hour at ambient temperature. 5 ml of trifluoroacetic acid are added and the reaction medium is stirred for 30 minutes at ambient temperature. The reaction medium is evaporated to dryness under reduced pressure, and the resulting product is taken up with dichloromethane and an aqueous 1% NH4OH solution. The organic phase is washed with a saturated aqueous sodium chloride solution, dried over magnesium sulfate, filtered and evaporated, so as to give 175 mg of piperidin-4-yl acetate in the form of a yellow oil.

Provenance & Evidence