Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1775266Generated: October 26, 2026

2-Amino-4-(trifluoromethyl)benzamide → 2-(4-chloro-2-ethylsulfanylphenyl)-7-trifluoromethyl-3H-quinazolin-4-one

https://huagongshe.com/reaction/1775266

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Amino-4-(trifluoromethyl)benzamideHCID 69739—
ReactantSodium BicarbonateHCID 516892—
ReactantSodium BisulfiteHCID 23665763—
Reactant4-Chloro-2-ethylsulfanylbenzaldehydeHCID 114863540—
SolventWaterHCID 962—
SolventDimethylacetamideHCID 31374—
Product2-(4-chloro-2-ethylsulfanylphenyl)-7-trifluoromethyl-3H-quinazolin-4-oneHCID 13696875080.7%

Reaction Conditions

Temperature150 °C

Reaction Steps

A mixture of 1.0 g of 2-amino-4-trifluromethylbenzamide, 944 mg of 4-chloro-2-ethylsulfanylbenzaldehyde, 765 mg of sodium bisulfite and 4 ml of DMA was stirred at 150° C. for 15 hours. A saturated aqueous sodium bicarbonate solution and water were added to the cooled reaction mixture, and the precipitated solid was filtered. The resulting solid was washed with water and n-hexane and then dried to obtain 1.46 g of 2-(4-chloro-2-ethylsulfanylphenyl)-7-trifluoromethyl-3H-quinazolin-4-one.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09260436B2
Source datasetuspto-grants-2016_02
ORD IDord-f5e32b9844ec419e83db4936c186d6bb
Source noteuspto-grants-2016_02