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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 409915Generated: October 25, 2026

Methyl indole-6-carboxylate → methyl 3-fluoro-1H-indole-6-carboxylate

https://huagongshe.com/reaction/409915

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl indole-6-carboxylateHCID 639844—
Reactant1-Fluoro-2,4,6-trimethylpyridinium Trifluoromethanesulfonate [Fluorinating Reagent]HCID 2724575—
SolventMethanolHCID 887—
Productmethyl 3-fluoro-1H-indole-6-carboxylateHCID 59625843—

Reaction Steps

A solution of methyl 1H-indole-6-carboxylate 20a (11.4 mmol, 2.0 g) and N-fluoro-2,4,6-trimethylpyridinium triflate (14.8 mmol, 4.3 g) in MeOH (100 mL) was heated at reflux for 18 h. The reaction mixture was concentrated and purified by flash column chromatography (silica gel, 15-20% EtOAc/hexanes) to give compound 20b as an off-white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08759533B2
Source datasetuspto-grants-2014_06
ORD IDord-73b9c93dbb2d4175912811e925bef103
Source noteuspto-grants-2014_06