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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2079686Generated: October 30, 2026

Urea → HCID 178490585, compound

https://huagongshe.com/reaction/2079686

Reaction equation

Participants

RoleNameHCIDCharge
ReactantUreaHCID 1176—
ReactantHCID 59199248HCID 59199248—
SolventWaterHCID 962—
ProductHCID 178490585HCID 17849058570%

Reaction Conditions

Temperature175 °C

Reaction Steps

A mixture of 2-amino-3-methoxy-6-(trifluoromethyl)benzaldehyde (1 eq) (obtained from step 7) and urea (15 equiv.) was heated to 175° C. with vigorous stirring for 2 h. The reaction was cooled to room temperature and water was added. The solid was collected by filtration. Air-dried to give 8-methoxy-5-(trifluoromethyl) quinazolin-2-ol as yellow solid in 70% yield. ES/MS m/z 245.0 (MH+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07932262B2
Source datasetuspto-grants-2011_04
ORD IDord-5bae4f2db19140bb9857811c82f1b4bc
Source noteuspto-grants-2011_04