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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1472718Generated: October 31, 2026

Urea → 6-METHOXYQUINAZOLINE-2,4-DIOL

https://huagongshe.com/reaction/1472718

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 numberUS09012646B2
Source datasetuspto-grants-2015_04
ORD IDord-0e2959cd25884f7cb48f6ce16e6d964d
Source noteuspto-grants-2015_04