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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 322570Generated: October 25, 2026

Acetic Anhydride → Cyanoacetyldibenzylurea

https://huagongshe.com/reaction/322570

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AnhydrideHCID 7918—
ReactantCyanoacetic acidHCID 9740—
ReactantUrea, N,N'-bis(phenylmethyl)-HCID 72889—
SolventWaterHCID 962—
ProductCyanoacetyldibenzylureaHCID 20642783—

Reaction Steps

36.0 g (0.15 mol) of dibenzylurea, 15.3 g (0.18 mol) of cyanoacetic acid and 30.6 g (0.3 mol) of acetic anhydride are stirred at 80-85° C. for 2 hours. After cooling, the reaction mixture is stirred into 600 ml of water and the resultant precipitate is filtered off with suction and then dried to constant weight.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06211270B1
Source datasetuspto-grants-2001_04
ORD IDord-c240c421fc754ef49d6d0795e73d913e
Source noteuspto-grants-2001_04