HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1854701Generated: October 30, 2026
1-(2-Hydroxyethyl)piperazine → HCID 43592166, compound
https://huagongshe.com/reaction/1854701
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | 1-(2-Hydroxyethyl)piperazine | HCID 7677 | — |
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | 4-Bromo-2-fluorobenzaldehyde | HCID 143517 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | HCID 43592166 | HCID 43592166 | 49% |
Reaction Steps
To a suspension of 4-bromo-2-fluorobenzaldehyde (281 μL, 2.37 mmol) and potassium carbonate (328 mg, 2.37 mmol) in 5 mL of dry N,N-dimethylformamide was added 4-(2-hydroxyethyl)piperazine (463 mg, 3.56 mmol) at room temperature. After being stirred at 110° C. for 12 h, the reaction mixture was diluted with ethyl acetate. The solution was washed with water, saturated NaHCO3 aqueous solution, brine, and dried over MgSO4. After filtration, the filtrate was concentrated in vacuo, and the residue was purified by silica gel column chromatography (chloroform/methanol=98/2 to 90/10) to obtain the title compound as a pale yellow powder (364 mg, 49%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08962674B2 |
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| Source dataset | uspto-grants-2015_02 |
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| ORD ID | ord-fcb880fc26c340148925f0ad58e6e136 |
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| Source note | uspto-grants-2015_02 |
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