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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2200129Generated: October 30, 2026

Trifluoroacetic acid → (3-Bromo-5-(trifluoromethyl)phenyl)(piperidin-4-yl)methanone

https://huagongshe.com/reaction/2200129

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
ReactantEthyl AcetateHCID 8857—
ReactantHCID 90029693HCID 90029693—
SolventDichloromethaneHCID 6344—
Product(3-Bromo-5-(trifluoromethyl)phenyl)(piperidin-4-yl)methanoneHCID 90020499135.2%

Reaction Steps

Add trifluoroacetic acid in dichloromethane (20%, 5 mL) to the solution of tert-butyl-4-(3-bromo-5-(trifluoromethyl)benzoyl)piperidine-1-carboxylate (387 mg, 0.88 mmol) in dichloromethane (5 mL) at 0° C., stir the mixture. TLC (PE:EtOAc=5:1) shows the reaction is complete. Concentrate under reduced pressure to dryness to afford the crude product (400 mg, 100%) which is used directly in next step. MS: (M+1): 336.0.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09359338B2
Source datasetuspto-grants-2016_06
ORD IDord-4ed2c7f96a894190aa2ce5e345bb2ad7
Source noteuspto-grants-2016_06