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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2079651Generated: November 1, 2026

Urea → HCID 178497297, compound

https://huagongshe.com/reaction/2079651

Reaction equation

Participants

RoleNameHCIDCharge
ReactantUreaHCID 1176—
ReactantMethyl 3-amino-4-formylbenzoateHCID 18412577—
SolventWaterHCID 962—
ProductHCID 178497297HCID 178497297—

Reaction Conditions

Temperature145 °C

Reaction Steps

To methyl 4-formyl-3-aminobenzoate (1 eq) was added urea (5 eq) and the mixture was heated to 145° C. for 16 h. To the crude was added water and the precipitated solid was filtered to give methyl 2-hydroxyquinazolin-7-carboxylate in quantitative yield. ES/MS m/z 205 (MH+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07932262B2
Source datasetuspto-grants-2011_04
ORD IDord-703e6e721f344d8798f9e8efb9e0a359
Source noteuspto-grants-2011_04