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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1750629Generated: November 2, 2026

2-(Trifluoromethyl)benzoic acid → HCID 118308264, compound

https://huagongshe.com/reaction/1750629

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-(Trifluoromethyl)benzoic acidHCID 9899—
ReactantDiisopropylethylamineHCID 81531—
ReactantO-(Benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborateHCID 2733207—
Reactant(1S,2S)-1-N-[5-(Trifluoromethyl)pyrazin-2-yl]cyclopentane-1,2-diamine hydrochlorideHCID 118308118—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
ProductHCID 118308264HCID 118308264—

Reaction Steps

To a solution of (1S,2S)-1-N-[5-(trifluoromethyl)pyrazin-2-yl]cyclopentane-1,2-diamine hydrochloride (Intermediate 14; 60 mg, 0.21 mmol) in DMF (3 ml) was added 2-(trifluoromethyl)benzoic acid (CAS number 433-97-6; 60 mg, 0.21 mmol), TBTU (0.082 g, 0.25 mmol) and DIPEA (0.1 g, 0.84 mmol) and the reaction was stirred at room temperature for 2 hours. The reaction was diluted with water (25 ml) and extracted with ethyl acetate (30 ml×3). The organics were washed with water (50 ml), brine (25 ml), dried over sodium sulfate and concentrated in vacuo. The resulting residue was purified by column chromatography (silica, 0-45% ethyl acetate/n-hexane) to afford the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09156829B2
Source datasetuspto-grants-2015_10
ORD IDord-4cce86832fa94a5db7522f336bb9a45b
Source noteuspto-grants-2015_10