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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 528776Generated: October 26, 2026

Trifluoroacetic acid → 3-Ethynyl-pyrrolidinium trifluoro-acetate

https://huagongshe.com/reaction/528776

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactanttert-Butyl 3-ethynylpyrrolidine-1-carboxylateHCID 54012212—
SolventDichloromethaneHCID 6344—
Product3-Ethynyl-pyrrolidinium trifluoro-acetateHCID 86667176—

Reaction Steps

To 0.85 g (4.35 mmol) 3-Ethynyl-pyrrolidine-1-carboxylic acid tert-butyl ester in 30 mL DCM was added 2 mL (26.0 mmol) TFA and stirring was continued at room temperature for 3 h. The solvents were evaporated and the residue was used for the next step without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09346816B2
Source datasetuspto-grants-2016_05
ORD IDord-c1eb13ada4284922a86903b907fe8526
Source noteuspto-grants-2016_05