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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 896481Generated: October 30, 2026

2(3H)-Benzoxazolone → 4-[2-(2-Oxo-1,3-benzoxazol-3(2H)-yl)ethoxy]benzaldehyde

https://huagongshe.com/reaction/896481

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2(3H)-BenzoxazoloneHCID 6043—
ReactantPotassium CarbonateHCID 11430—
Reactant4-(2-Chloroethoxy)benzaldehydeHCID 143156—
SolventDimethylformamideHCID 6228—
Product4-[2-(2-Oxo-1,3-benzoxazol-3(2H)-yl)ethoxy]benzaldehydeHCID 22351115—

Reaction Steps

Dissolve benzoxazolinone (0.024 mol) in dimethylformamide and add potassium carbonate (0.047 mol). Heat at reflux for 20 minutes and then add the compound obtained in Step A (0.021 mol). Stir magnetically at reflux for 80 minutes. Hydrolyse the reaction mixture in 150 ml of water, suction-filter off the resulting precipitate and recrystallise it from a 5/5 cyclohexane/toluene mixture.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06919362B2
Source datasetuspto-grants-2005_07
ORD IDord-7fe4e1def63840cca8fa5372b59047de
Source noteuspto-grants-2005_07