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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1939945Generated: November 2, 2026

Water → HCID 135430303, compound

https://huagongshe.com/reaction/1939945

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantEthylamineHCID 6341—
Reactant7-Chloro-6-nitroquinazolin-4(1H)-oneHCID 135687504—
SolventEthanolHCID 702—
ProductHCID 135430303HCID 13543030339%

Reaction Conditions

Temperature110 °C

Reaction Steps

A 70% aqueous ethylamine solution (40 ml) was added to a solution (70 ml) of 7-chloro-6-nitro-4(3H)-quinazolone (6.31 g, 28.0 mmol) in ethanol and the mixture was heated with stirring at 110° C. for 4 hours in a sealed tube. After cooling to room temperature, the reaction mixture was poured into water and the precipitated crystals were collected by filtration. The crystals were washed with ethanol and dried to give the title compound (2.6 g, 39%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05698560
Source datasetuspto-grants-1997_12
ORD IDord-98ede638025a4444b87a0b2bdaaf47c0
Source noteuspto-grants-1997_12