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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2085588Generated: November 1, 2026

Dichloromethane → 5-Bromo-3,3-dimethyl-7-hexanoyl-2,3-dihydrobenzofuran

https://huagongshe.com/reaction/2085588

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDichloromethaneHCID 6344—
ReactantHexanoyl chlorideHCID 67340—
Reactant5-Bromo-3,3-dimethyl-2,3-dihydro-1-benzofuranHCID 5323595—
ReactantAluminum(III) ChlorideHCID 6451240—
SolventHexaneHCID 8058—
SolventEthyl AcetateHCID 8857—
Product5-Bromo-3,3-dimethyl-7-hexanoyl-2,3-dihydrobenzofuranHCID 22731298—

Reaction Steps

Following General Procedure I and using aluminum chloride 1.76 g, 13.2 mmol), 20 mL of anhydrous dichloromethane, hexanoyl chloride (1.76 g, 13.2 mmol) and 5-bromo-3,3-dimethyl-2,3-dihydro-benzofuran (Intermediate 2, 1.5 g, 6.61 mmol) followed by flash column chromatography on silica gel (230-400 mesh) using 3% ethyl acetate in hexane as the eluent, the title compound was obtained as a yellow oil. It was used as such for the next step.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06720423B2
Source datasetuspto-grants-2004_04
ORD IDord-118471512ccd4bb9a9fb8f0c8d4a6837
Source noteuspto-grants-2004_04