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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 75707Generated: October 25, 2026

Formamide → 7-Fluoroquinazolin-4(3H)-one

https://huagongshe.com/reaction/75707

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFormamideHCID 713—
Reactant4-Fluoroanthranilic acidHCID 2724967—
SolventDimethylformamideHCID 6228—
Product7-Fluoroquinazolin-4(3H)-oneHCID 13539849681.9%

Reaction Conditions

Temperature180 °C

Reaction Steps

2-amino-4-fluorobenzoic acid (100 g, 0.64 mol) and formamide (154 mL, 3.87 mol) were mixed with a catalytic amount (1 mL) of N,N-dimethylformamide. The mixture was heated to 180° C. and further stirred for 14 hours. The mixture was cooled to room temperature, and distilled water (1000 mL) was added thereto. The mixture was stirred for 30 min and filtered to obtain the title compound (86 g, 81.3%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08835458B2
Source datasetuspto-grants-2014_09
ORD IDord-25bcd9b5e8a44c889d87d8e953462ed9
Source noteuspto-grants-2014_09