HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 336366Generated: October 28, 2026
Piperazine → 1-(4-Ethoxy-pyridin-2-yl)-piperazine hydrochloride
https://huagongshe.com/reaction/336366
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Piperazine | HCID 4837 | — |
| Reactant | 2-Chloro-4-ethoxypyridine | HCID 817238 | — |
| Solvent | 1-Butanol | HCID 263 | — |
| Product | 1-(4-Ethoxy-pyridin-2-yl)-piperazine hydrochloride | HCID 86690168 | 44% |
Reaction Steps
860 mg piperazine was added to 350 mg 2-chloro-4-ethoxy-pyridine in 3.5 mL n-butanol. The reaction was stirred 1.5 days at 115° C. The reaction was filtered and the filtrate was washed with water and evaporated. 1N HCl was added to the residue and the precpipate was filtered to give 238 mg of the desired product. Rt: 0.3 min (method B), (M+H)+: 208
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08889677B2 |
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| Source dataset | uspto-grants-2014_11 |
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| ORD ID | ord-aa29e03f2d50462e8e58c5a4ee304661 |
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| Source note | uspto-grants-2014_11 |
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