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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1405487Generated: October 30, 2026

Trifluoroacetic acid → HCID 28952599, compound

https://huagongshe.com/reaction/1405487

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
ReactantSodium BicarbonateHCID 516892—
Reactant1,1-Dimethylethyl 4-[3-(trifluoromethyl)-2-pyridinyl]-1-piperidinecarboxylateHCID 57979785—
SolventDichloromethaneHCID 6344—
ProductHCID 28952599HCID 28952599—

Reaction Conditions

Temperature0 °C

Reaction Steps

Into a 50-mL round-bottom flask, was placed a solution of tert-butyl 4-(3-(trifluoromethyl)pyridin-2-yl)piperidine-1-carboxylate (379.8 mg, 1.10 mmol, 1.00 equiv, 96%) in dichloromethane (10 mL). This was followed by the addition of trifluoroacetic acid (5 mL) dropwise with stirring at 0° C. The resulting solution was stirred for 3 h at room temperature. The pH value of the solution was adjusted to 8-9 with sat sodium bicarbonate. The resulting solution was extracted with 6×50 mL of dichloromethane and the organic layers combined and dried over anhydrous sodium sulfate. The solids were filtered out. The resulting mixture was concentrated under vacuum. This resulted in 237.4 mg (93%) of 2-(piperidin-4-yl)-3-(trifluoromethyl)pyridine as yellow oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08916560B2
Source datasetuspto-grants-2014_12
ORD IDord-fc86821a06b54c35b09a0668a75dd3d4
Source noteuspto-grants-2014_12