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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 557120Generated: October 25, 2026

Propionyl chloride → 2-Ethyl-1-phenyl-1H-quinazolin-4-one

https://huagongshe.com/reaction/557120

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPropionyl chlorideHCID 62324—
Reactant2-(Phenylamino)BenzamideHCID 96455—
ReactantSodium BicarbonateHCID 516892—
SolventChloroformHCID 6212—
Product2-Ethyl-1-phenyl-1H-quinazolin-4-oneHCID 66991027—

Reaction Conditions

Temperature0 °C

Reaction Steps

2.0 g (9.42 mmol) 2-phenylamino-benzamide were dissolved in 30 ml trichloromethane the solution was cooled to 0° C., and 2.61 g (2.44 ml, 28.2 mmol) propionyl chloride was added slowly. The mixture was boiled for 90 minutes and afterwards neutralized with a saturated sodium bicarbonate solution. After evaporation the substance was crystallized from isopropanol.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08058431B2
Source datasetuspto-grants-2011_11
ORD IDord-3a03597141834694b183180e548982e9
Source noteuspto-grants-2011_11