Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1296869Generated: October 26, 2026

Acetic Anhydride → 3-(2-Bromo-phenyl)-6-chloro-7-hydroxy-2-methyl-chromen-4-one

https://huagongshe.com/reaction/1296869

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AnhydrideHCID 7918—
ReactantPotassium CarbonateHCID 11430—
Reactant2-(2-Bromo-phenyl)-1-(5-chloro-2,4-dihydroxy-phenyl)-ethanoneHCID 58913586—
Product3-(2-Bromo-phenyl)-6-chloro-7-hydroxy-2-methyl-chromen-4-oneHCID 58913501—

Reaction Steps

This compounds was synthesised in the same manner as described above. 2-(2-Bromo-phenyl)-1-(5-chloro-2,4-dihydroxy-phenyl)-ethanone (2.0 g, 5.88 mmol), acetic anhydride (2.0 ml), potassium carbonate (2.5 g 18.1 mmol). The white precipitate formed was shown to contain the required compound and was taken directly onto the next stage.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07247734B2
Source datasetuspto-grants-2007_07
ORD IDord-e23d6ceb7ed64c8cae07c048eda1ab52
Source noteuspto-grants-2007_07