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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1925399Generated: October 30, 2026

4-Piperidinol, 1-methyl- → HCID 67521137, compound

https://huagongshe.com/reaction/1925399

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Piperidinol, 1-methyl-HCID 66048—
Reactant4-Fluoro-3-nitrobenzotrifluorideHCID 67778—
ReactantPotassium tert-butoxideHCID 23665647—
SolventTetrahydrofuranHCID 8028—
ProductHCID 67521137HCID 67521137—

Reaction Steps

1-methylpiperidin-4-ol (2.99 mmol, 344.4 mg) was added to a suspension of potassium tert-butoxide in THF (5 mL) and stirred at RT for 30 minutes. 2-fluoro-5-trifluoromethyl nitrobenzene (2.39 mmol, 500 mg) was then added and the reaction mixture was stirred an additional 5 h at RT, at which time LC-MS showed complete conversion to the desired product. The reaction mixture was concentrated and the dark brown residue was taken up in methylene chloride (25 mL). This was washed with water (3×20 mL), dried over sodium sulfate, filtered and concentrated to give the crude product as a yellow oil. Crude material (>90% purity) was taken to the next step without further purification LC-MS: 305.1 (M+H)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08178557B2
Source datasetuspto-grants-2012_05
ORD IDord-0750aaa4bf5a4ecb9feca3fb79c29272
Source noteuspto-grants-2012_05