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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1042231Generated: October 31, 2026

Barbituric Acid → HCID 136122890, compound

https://huagongshe.com/reaction/1042231

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBarbituric AcidHCID 6211—
ReactantEthyl isocyanatoacetateHCID 76283—
ReactantDiisopropylethylamineHCID 81531—
SolventDimethylformamideHCID 6228—
SolventDichloromethaneHCID 6344—
ProductHCID 136122890HCID 13612289022%

Reaction Steps

Barbituric acid (512 mg, 4 mmol) was dissolved in a mixture of dichloromethane (3 mL) and DMF (5 mL). N,N-Diisopropylethylamine (2 mL) was added followed by ethyl isocyanatoacetate (645 mg, 5 mmol) and the solution was stirred overnight. After evaporation of all volatiles, the residue was re-dissolved in a mixture of ethanol (5 mL) and 1M aqueous NaOH (5 mL). After stirring at room temperature for one hour, this solution was neutralized by addition of 1M aqueous HCl. The resulting solid was collected, washed with water, and dried under vacuum overnight to give the title compound (202 mg, 22%). LC/MS m/z 230 (M+H+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08557834B2
Source datasetuspto-grants-2013_10
ORD IDord-a3b000e097fa45e5bf18c1830a1071a9
Source noteuspto-grants-2013_10