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
Participants
| Role | Name | HCID | Charge |
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| Reactant | Ethyl piperazine-1-acetate | HCID 207112 | — |
| Reactant | 2-Chloro-6-(trifluoromethyl)pyridin-3-amine | HCID 2737646 | — |
| Solvent | Water | HCID 962 | — |
| Product | HCID 68304438 | HCID 68304438 | 154.5% |
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
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08952004B2 |
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| Source dataset | uspto-grants-2015_02 |
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| ORD ID | ord-efe88f1039f848ef91246bd653cae8c2 |
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| Source note | uspto-grants-2015_02 |
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