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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 552991Generated: October 26, 2026

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

https://huagongshe.com/reaction/552991

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFormamideHCID 713—
Reactant4-Nitroanthranilic acidHCID 12076—
Product7-Nitroquinazolin-4(3H)-oneHCID 8622280095%

Reaction Conditions

Temperature165 °C

Reaction Steps

A mixture of 4-nitroanthranilic acid (2.17 g, 11.91 mmol) and formamide (1.5 mL, 38.43 mmol) was heated at 165° C. for 4 hours. The warm reaction mixture was poured into ice/water (30 mL) and the resulting precipitate was collected via filtration, to give an orange solid (2.16 g, 95% yield) which was dried over P2O5. This was used without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07951955B2
Source datasetuspto-grants-2011_05
ORD IDord-6dcf723364054cfd9ee23aaa35eca442
Source noteuspto-grants-2011_05