HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 478636Generated: October 30, 2026
Acetonitrile → [4-(2-Methoxy-ethyl)-piperazin-1-yl]-benzoic acid methyl ester
https://huagongshe.com/reaction/478636
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Acetonitrile | HCID 6342 | — |
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | 2-Bromoethyl methyl ether | HCID 80972 | — |
| Reactant | Methyl 4-(piperazin-1-yl)benzoate | HCID 15429161 | — |
| Product | [4-(2-Methoxy-ethyl)-piperazin-1-yl]-benzoic acid methyl ester | HCID 69996255 | — |
Reaction Steps
4-(Piperazin-1-yl)-benzoic acid methyl ester (19 mmol), 2-bromoethylmethylether (21 mmol), and potassium carbonate (22.8 mmol) are suspended in acetonitrile (50 ml) and stirred at 80° C. for 8 hours. After evaporation of the solvent, the residue is dissolved in water and extracted three times with CH2Cl2. The extract is dried over sodium sulfate and evaporated. The residue is suspended in diethylether/pentane and the solid filtered of and dried (vacuum). A powder with mp. 103-105° C. is obtained.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06642239B2 |
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| Source dataset | uspto-grants-2003_11 |
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| ORD ID | ord-1cd1d1cbee6746bc99383690b7f9f84c |
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| Source note | uspto-grants-2003_11 |
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