HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1690139Generated: October 29, 2026
Ethanol → 5-(2H-1,3-benzodioxol-5-yl)-5-methylimidazolidine-2,4-dione
https://huagongshe.com/reaction/1690139
Participants
| Role | Name | HCID | Charge |
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| Reactant | Ethanol | HCID 702 | — |
| Reactant | Sodium Cyanide | HCID 8929 | — |
| Reactant | Acetopiperone | HCID 76622 | — |
| Reactant | Ammonium Carbonate | HCID 517111 | — |
| Solvent | Water | HCID 962 | — |
| Product | 5-(2H-1,3-benzodioxol-5-yl)-5-methylimidazolidine-2,4-dione | HCID 2829817 | 51.2% |
Reaction Steps
1-(Benzo[d][1,3]dioxol-5-yl)ethanone (446 mg, 2.72 mmol) was dissolved in ethanol (200 mL) and water (200 mL). The resultant mixture was added with sodium cyanide (200 mg, 4.08 mmol) and ammonium carbonate (918 mg, 9.55 mmol) and stirred at 70° C. overnight. The reaction solution was filtered, washed with water and hexane/ethyl acetate, and dried using anhydrous sodium sulfate. 5-(Benzo[d][1,3]dioxol-5-yl)-5-methylimidazolidine-2,4-dione (326 mg, yield 51.2%) was obtained as a white crystal.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08153634B2 |
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| Source dataset | uspto-grants-2012_04 |
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| ORD ID | ord-3bcc735f10a843489e21e51f5628df24 |
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| Source note | uspto-grants-2012_04 |
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