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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1380436Generated: October 31, 2026

Acetic Anhydride → HCID 13313792, compound

https://huagongshe.com/reaction/1380436

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AnhydrideHCID 7918—
ReactantBenzylureaHCID 10853—
Reactant2-(Trifluoromethyl)acrylic acidHCID 587694—
ProductHCID 13313792HCID 1331379273.5%

Reaction Conditions

Temperature100 °C

Reaction Steps

A mixture of α-trifluoromethylacrylic acid (350 mg; 2.5 mmoles), benzylurea (389 mg; 2.6 mmoles) and acetic anhydride (2 ml) was heated with stirring at 100° C. for 1 hour. The solvent was evaporated under reduced pressure, and the residue was recrystallized from chloroform/hexane to give 500 mg (yield: 72%) of 3-benzyl-5-trifluoromethyldihydrouracil. The physical and spectral properties of this product completely agreed with those of the product obtained in Example 6.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04581452
Source datasetuspto-grants-1986_04
ORD IDord-e80599714adc460da8eaf88111514870
Source noteuspto-grants-1986_04