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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2171066Generated: November 1, 2026

Hydrochloric Acid → 4-(4-(Difluoromethoxy)-2-hydroxy-3-methoxyphenyl)-2,3-dihydro-1H-inden-1-one

https://huagongshe.com/reaction/2171066

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant4-(4-(difluoromethoxy)-3-methoxy-2-(methoxymethoxy)phenyl)-2,3-dihydro-1H-inden-1-oneHCID 67468077—
SolventMethanolHCID 887—
Product4-(4-(Difluoromethoxy)-2-hydroxy-3-methoxyphenyl)-2,3-dihydro-1H-inden-1-oneHCID 6746853080%

Reaction Conditions

Temperature50 °C

Reaction Steps

To a stirring solution of 4-(4-(difluoromethoxy)-3-methoxy-2-(methoxymethoxy)phenyl)-2,3-dihydro-1H-inden-1-one (1 g, 2.74 mmol) in methanol (75 mL) was added concentrated hydrochloride (5 mL) and the reaction mixture was heated to 50° C. for 1 h. The reaction mixture was cooled to RT and concentrated under reduced pressure and the obtained residue was basified with sodium bicarbonate solution and extracted with dichloromethane (3×). The combined dichloromethane layers were washed with brine, dried over sodium sulphate and concentrated under reduced pressure to afford the title compound as a solid (700 mg, 80%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09051290B2
Source datasetuspto-grants-2015_06
ORD IDord-cf747b80f1c64aca8adbc6290c5d8f8e
Source noteuspto-grants-2015_06