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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2245672Generated: October 28, 2026

Triethylamine → HCID 902040, compound

https://huagongshe.com/reaction/2245672

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
Reactant1-MethylpiperazineHCID 53167—
Reactant6-Chloronicotinic acidHCID 79222—
ReactantPyBOPHCID 2724699—
SolventDimethylformamideHCID 6228—
ProductHCID 902040HCID 90204049.1%

Reaction Steps

To a solution of 6-Chloro-nicotinic acid (3.00 g, 19.0 mmol) in 30 mL dimethylformamide was added (benzotriazol-1-yloxy)tripyrrolidinophosphonium hexafluorophosphate (10.9 g, 20.9 mmol), 1-methylpiperazine (2.30 g, 22.1 mmol) and triethylamine (2.18 g, 21.5 mmol). After stirring for 18 hours, this was partitioned between ethyl acetate and water. The ethylacetate layer was dried over anhydrous sodium sulfate, concentrated in vacuo, and purified by flash chromatography (elution with 3% methanol/dichloromethane) to yield (6-Chloro-pyridin-3-yl)-(4-methyl-piperazin-1-yl)-methanone (2.50 g, 9.33 mmol).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07683064B2
Source datasetuspto-grants-2010_03
ORD IDord-de5fef9ca00d476fa6018e2485e85eb7
Source noteuspto-grants-2010_03