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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

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantSodium CyanideHCID 8929—
ReactantAcetopiperoneHCID 76622—
ReactantAmmonium CarbonateHCID 517111—
SolventWaterHCID 962—
Product5-(2H-1,3-benzodioxol-5-yl)-5-methylimidazolidine-2,4-dioneHCID 282981751.2%

Reaction Conditions

Temperature70 °C

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

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08153634B2
Source datasetuspto-grants-2012_04
ORD IDord-3bcc735f10a843489e21e51f5628df24
Source noteuspto-grants-2012_04