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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1846678Generated: November 3, 2026

Ethyl piperazine-1-acetate → HCID 68304438, compound

https://huagongshe.com/reaction/1846678

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl piperazine-1-acetateHCID 207112—
Reactant2-Chloro-6-(trifluoromethyl)pyridin-3-amineHCID 2737646—
SolventWaterHCID 962—
ProductHCID 68304438HCID 68304438154.5%

Reaction Conditions

Temperature150 °C

Reaction Steps

A neat mixture of 0.500 g (2.54 mmol) of 3-amino-2-chloro-6-trifluoromethylpyridine and 0.870 g (5.09 mmol) of piperazin-1-yl-acetic acid ethyl ester is heated to 150° C. and stirred for 20 h. The mixture is cooled to room temperature, diluted with water, and extracted with ethyl acetate. The combined organic layer is washed with water followed by brine and then dried over anhydrous sodium sulfate and concentrated under reduced pressure. The crude material is purified by flash silica gel chromatography to provide 0.650 g (77.1%) of (3′-amino-6′-trifluoromethyl-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-yl)-acetic acid ethyl ester as a brown oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08952004B2
Source datasetuspto-grants-2015_02
ORD IDord-efe88f1039f848ef91246bd653cae8c2
Source noteuspto-grants-2015_02