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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2099073Generated: October 31, 2026

Dimethylformamide → HCID 7961565, compound

https://huagongshe.com/reaction/2099073

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
Reactant4-Fluoro-3-nitrobenzotrifluorideHCID 67778—
Reactant(S)-(+)-2-MethylpiperidineHCID 6427443—
SolventWaterHCID 962—
ProductHCID 7961565HCID 796156599.2%

Reaction Steps

(S)-2-methylpiperidine (270 μl, 2.24 mmol, commercially available product) was added at room temperature to an N,N-dimethylformamide (DMF; 0.5 ml) solution of 1-fluoro-2-nitro-4-(trifluoromethyl)benzene (211 mg, 1.00 mmol, commercially available product). The resulting mixture was stirred for two hours. Water was added to the mixture, and the resulting mixture was extracted three times with ethyl acetate. The obtained organic layer was washed with a saturated sodium chloride solution, dried over anhydrous sodium sulfate, filtered, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (20 g, hexane/ethyl acetate=12/1). Thus, (S)-1-[2-nitro-4-(trifluoromethyl)phenyl]-2-methylpiperidine (286 mg, 99.2%) was yielded as an orange-colored oily material.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07569536B2
Source datasetuspto-grants-2009_08
ORD IDord-52f8c8c97bd443cba2ab4a9c9f72b0c7
Source noteuspto-grants-2009_08