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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2201500Generated: October 29, 2026

Urea → 6-METHOXYQUINAZOLINE-2,4-DIOL

https://huagongshe.com/reaction/2201500

Reaction equation

Participants

RoleNameHCIDCharge
ReactantUreaHCID 1176—
Reactant5-Methoxyanthranilic acidHCID 277930—
SolventWaterHCID 962—
Product6-METHOXYQUINAZOLINE-2,4-DIOLHCID 1033020088.8%

Reaction Conditions

Temperature200 °C

Reaction Steps

A mixture of 2-amino-5-methoxybenzoic acid (5.00 g, 29.9 mmol) and urea (5.40 g, 90.0 mmol) was heated to 200° C. for 1 hour. The mixture was cooled to room temperature and diluted with H2O (50 mL), the mixture was filtered off and the precipitate was washed with H2O (10 mL), dried in vacuo to give the product (5.10 g, yield 88%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09364481B2
Source datasetuspto-grants-2016_06
ORD IDord-0334ec8119f74f7d8163db0c991f8c95
Source noteuspto-grants-2016_06