HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 591633Generated: October 30, 2026
Sodium Hydroxide → 2-(4-(piperazin-1-yl)phenyl)quinazolin-4(3H)-one
https://huagongshe.com/reaction/591633
Participants
| Role | Name | HCID | Charge |
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| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | 2-(4-(4-acetylpiperazin-1-yl)phenyl)quinazolin-4(3H)-one | HCID 136348001 | — |
| Solvent | Hydrochloric Acid | HCID 313 | — |
| Product | 2-(4-(piperazin-1-yl)phenyl)quinazolin-4(3H)-one | HCID 136348005 | 90.4% |
Reaction Steps
A mixture of 2-(4-(4-acetylpiperazin-1-yl)phenyl)quinazolin-4(3H)-one (2.27 g, 6.5 mmol) and 2 N HCl (100 mL) were heated at 100° C. for 4 hours. Then, the mixture was cooled to room temperature, basified to pH 8 with 2 N NaOH, extracted with CH2Cl2 (3×150 mL), dried over anhydrous MgSO4, filtered, and concentrated to afford 2-(4-(piperazin-1-yl)phenyl)quinazolin-4(3H)-one as a pale yellow solid (1.8 g, 90%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09238640B2 |
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| Source dataset | uspto-grants-2016_01 |
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| ORD ID | ord-580366da60d04a9ebac6daef47cbad71 |
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| Source note | uspto-grants-2016_01 |
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