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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 624330Generated: October 25, 2026

Diethyl Ether → ethyl 4-fluoro-2-(2-methyl-1H-indol-5-yloxy)benzoate

https://huagongshe.com/reaction/624330

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiethyl EtherHCID 3283—
ReactantPotassium Phosphate, TribasicHCID 62657—
Reactant2-methyl-1H-indol-5-olHCID 83336—
ReactantBenzoic acid, 2,4-difluoro-, ethyl esterHCID 2737170—
SolventDiglymeHCID 8150—
Productethyl 4-fluoro-2-(2-methyl-1H-indol-5-yloxy)benzoateHCID 67227223—

Reaction Steps

Ethyl 2,4-difluorobenzoate (1.14 g), K3PO4 (1.30 g) and 2-methyl-5-indolol (0.90 g) were stirred at 110° C. in diglyme (12 mL) for 24 hours. The mixture was cooled and poured into ether. The solution was washed three times with 1M NaOH solution, and with brine, and dried. The solution was then concentrated. The concentrate was chromatographed on silica gel with 10% ethyl acetate/hexanes.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09303025B2
Source datasetuspto-grants-2016_04
ORD IDord-d36f982645a4457fbe6000a06edfb763
Source noteuspto-grants-2016_04