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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 705107Generated: October 29, 2026

Ethyl Acetate → HCID 24807791, compound

https://huagongshe.com/reaction/705107

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
Reactant4-FluoroanilineHCID 9731—
Reactant1,1'-CarbonyldiimidazoleHCID 68263—
Reactant2-(2-Benzyloxycarbonylamino-acetylamino)-benzoic AcidHCID 10711349—
SolventTetrahydrofuranHCID 8028—
SolventHexaneHCID 8058—
ProductHCID 24807791HCID 2480779150%

Reaction Conditions

Temperature75 °C

Reaction Steps

To a solution of the benzoic acid (2) (180 mg, 0.55 mmol) in tetrahydrofuran (6 mL) was added 1,1′-carbonyldiimidazole (98 mg, 0.60 mmol). After a period of 2 h, 4-fluoroaniline (61 mg, 0.55 mmol) in tetrahydrofuran (1.5 mL) was added and the mixture was stirred at 75° C. overnight. The tetrahydrofuran was removed in vacuo and the residue was redissolved in ethyl acetate, washed with 10% aqueous hydrochloric acid, saturated aqueous sodium hydrogen carbonate, dried (MgSO4) and concentrated to give an oily residue which was subjected to silica-gel column chromatography [eluent: Ethyl acetate:Hexane, 20:80, ν/ν->60:40, ν/ν] to give the title quinazolinone (3) (0.11 g, 50%) as a white solid:

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09173869B2
Source datasetuspto-grants-2015_11
ORD IDord-80420bd2fbcf4988bf92f942f4e705c4
Source noteuspto-grants-2015_11