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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1801005Generated: October 29, 2026

Benzocaine → HCID 67442291, compound

https://huagongshe.com/reaction/1801005

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzocaineHCID 2337—
Reactant3-Bromo-4-fluorobenzaldehydeHCID 173604—
SolventEthanolHCID 702—
ProductHCID 67442291HCID 6744229146%

Reaction Steps

A mixture of 4-amino-benzoic acid ethyl ester (1.65 g, 10 mmol) and 3-bromo-4-fluoro-benzaldehyde (2.03 g, 10 mmol) in ethanol (100 mL) was heated to reflux for 2 hours. Then the reaction mixture cooled to room temperature. The solvent was removed in vacuo and the residue was washed with ether to afford 4-{[1-(3-bromo-4-fluoro-phenyl)-methylidene]-amino}-benzoic acid ethyl ester (1.6 g, 46%) as a white solid: LC/MS m/e calcd for C16H13BrCFNO2 M+: 350.2, observed: 350.2, 352.2.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08344137B2
Source datasetuspto-grants-2013_01
ORD IDord-546595da7e4f471abb64a5d328871b64
Source noteuspto-grants-2013_01