HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 964439Generated: October 29, 2026
Hydrochloric Acid → HCID 54515007, compound
https://huagongshe.com/reaction/964439
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Dichloromethane methanol | HCID 21226129 | — |
| Reactant | HCID 86752380 | HCID 86752380 | — |
| Solvent | Potassium Hydroxide | HCID 14797 | — |
| Product | HCID 54515007 | HCID 54515007 | 47.9% |
Reaction Steps
4-(4-Acetylphenyl)-1-piperazinevaleric acid, methyl ester (15.3 mg) is suspended in 0.1 mL of potassium hydroxide solution (33.2 mg/mL). After heating at 100° C. for 150 min, the starting material is completely dissolved and absent by TLC (10% MeOH/CH2Cl2). After acidifying the reaction solution to pH 4 by adding 0.2N HCl, the aqueous solution is extracted with methylene chloride. After evaporation of the organic layer to dryness, the residue is dissolved in methylene chloride and filtered. Evaporation of the organic layer gives 7 mg of 4-(4-acetylphenyl)-1-piperazinevaleric acid as a white solid. 1H-NMR (CDCl3) spectrum is consistant with the assigned structure. MS (FAB) m/e 305 (M+ +H), 327 (M+ +Na), 348 (M+ +2Na--H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05767285 |
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| Source dataset | uspto-grants-1998_06 |
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| ORD ID | ord-21d010c3f05d4343809b3e7f5be5d83c |
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| Source note | uspto-grants-1998_06 |
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