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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 237315Generated: October 25, 2026

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

https://huagongshe.com/reaction/237315

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFormamideHCID 713—
Reactant4-Nitroanthranilic acidHCID 12076—
ReactantSodium BicarbonateHCID 516892—
Product7-Nitroquinazolin-4(3H)-oneHCID 8622280070.4%

Reaction Conditions

Temperature150 °C

Reaction Steps

A mixture of 2-amino-4-nitrobenzoic acid (5.0 g, 27.5 mmol) and formamide (8.0 ml, 201.5 mmol) in a microwave reaction vessel was heated in a microwave reactor at 150° C. for 1 hr. The slurry was cooled to rt, stirred with aq. NaHCO3, filtered, washed with water followed by ether and dried in vacuum oven to provide 3.7 g of 7-nitroquinazolin-4(3H)-one (Compound 98-1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08642582B2
Source datasetuspto-grants-2014_02
ORD IDord-43df6153f9214497a90881c77e95dd32
Source noteuspto-grants-2014_02