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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 496834Generated: October 26, 2026

Benzoyl chloride → N,N'-dibenzoylcarbamimidoic acid, methyl ester

https://huagongshe.com/reaction/496834

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzoyl chlorideHCID 7412—
ReactantSodium HydroxideHCID 14798—
ReactantCarbamimidic acid, methyl ester, sulfate (1:1)HCID 169039—
SolventWaterHCID 962—
ProductN,N'-dibenzoylcarbamimidoic acid, methyl esterHCID 69749939—

Reaction Conditions

Temperature7.5 °C

Reaction Steps

O-Methylisourea hydrogen sulfate (17.2 g, 0.1 mol) was suspended in water (100 mL) containing NaOH (20 g, 0.5 mol) and the mixture cooled to 5-10° C. The mixture was stirred vigorously as benzoyl chloride (35.15 g, 0.25 mol) was added at such a rate that the reaction temperature did not rise above 15° C. After the last addition, the mixture was stirred for 3 h and the resulting solid collected by vacuum filtration to give N,N′-dibenzoylcarbamimidoic acid, methyl ester.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06946554B2
Source datasetuspto-grants-2005_09
ORD IDord-cb9abf06b9da49438ab90561af0414ed
Source noteuspto-grants-2005_09