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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1479176Generated: October 31, 2026

Formate → 3-(4-bromophenyl)-7-hydroxy-4H-chromen-4-one

https://huagongshe.com/reaction/1479176

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFormateHCID 283—
ReactantResorcinolHCID 5054—
ReactantBenzeneacetyl chloride, 4-bromo-HCID 181552—
Reactant2-(4-bromophenyl)-1-(2,4-dihydroxyphenyl)ethanoneHCID 2063466—
Product3-(4-bromophenyl)-7-hydroxy-4H-chromen-4-oneHCID 5398367—

Reaction Steps

Resorcinol is reacted with 2-(4-bromophenyl)acetyl chloride forming the product 2-(4-bromophenyl)-1-(2,4-dihydroxyphenyl)ethanone. Such reactions are described in Chemistry of Heterocyclic Compounds (NY, N.Y., USA) 1977 Vol., 13, p. 948-953. The product is reacted with triethylorth formate to form 3-(4-bromophenyl)-7-hydroxy-chromen-4-one which can be reacted with methane sulfonyl chloride and a base to form [3-(4-bromophenyl)-4-oxo-chromen-7-yl] methanesulfonate.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09408826B2
Source datasetuspto-grants-2016_08
ORD IDord-eb298c12ad334cf1935502297d6280af
Source noteuspto-grants-2016_08