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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1825740Generated: November 2, 2026

Hydrochloric Acid → HCID 69637166, compound

https://huagongshe.com/reaction/1825740

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant4-[(3-Oxo-3,4-dihydro-2H-1,4-benzoxazin-2-ylidene)methyl]phenyl acetateHCID 57224333—
SolventSodium HydroxideHCID 14798—
ProductHCID 69637166HCID 69637166—

Reaction Steps

A mixture of 2-[(4-acetoxyphenyl)methylene]-2H-1,4-benzoxazin-3(4H)-one (0.49 g, 0.0016 mol) and NaOH 10% (30 ml) was refluxed for 1 h. The reaction mixture was cooled and acidified with 6N HCl. The precipitated was collected by filtration, then washed with water and dried. The crude product was purified by recrystalization from ethanol.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07049312B1
Source datasetuspto-grants-2006_05
ORD IDord-ec8bef30b1414ab1980787041818e997
Source noteuspto-grants-2006_05