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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 39512Generated: October 28, 2026

Tetrahydrofuran → Methyl 5-fluoro-2-methylisonicotinate

https://huagongshe.com/reaction/39512

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTetrahydrofuranHCID 8028—
ReactantAmmonium ChlorideHCID 25517—
ReactantTrimethylaluminumHCID 16682925—
ReactantMethyl 2-bromo-5-fluoropyridine-4-carboxylateHCID 46311206—
SolventEthyl AcetateHCID 8857—
SolventEthyl acetate hexaneHCID 21226206—
ProductMethyl 5-fluoro-2-methylisonicotinateHCID 58431567—

Reaction Steps

To a solution of methyl 2-bromo-5-fluoroisonicotinate (1.0 g, 4.27 mmol) in tetrahydrofuran (25 ml) tetrakis(triphenylphosphine)palladium (495.0 mg, 0.43 mmol) was added. The mixture was stirred for 10 min, and then trimethylaluminum (5.13 ml, 1.00 M in heptane, 5.13 mmol) was added. The mixture was refluxed for 4 h, and the reaction was monitored by TLC (10% EtOAc-Hexane). Then, the reaction was diluted with EtOAc (75 ml) and a few drops of saturated. ammonium chloride were added.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08524911B2
Source datasetuspto-grants-2013_09
ORD IDord-048900c073c44ef2b860e488a6ba0236
Source noteuspto-grants-2013_09