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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 876440Generated: October 30, 2026

Tetrahydrofuran → 8-Quinolinol, 2-(6-fluoro-1,2,4-triazolo[4,3-a]pyridin-3-yl)-

https://huagongshe.com/reaction/876440

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTetrahydrofuranHCID 8028—
ReactantSodium BicarbonateHCID 516892—
ReactantTetrabutylammonium FluorideHCID 2724141—
Reactant8-(Tert-butyldimethylsilyloxy)-2-(6-fluoro[1,2,4]triazolo[4,3-a]pyridin-3-yl)quinolineHCID 67231132—
SolventWaterHCID 962—
SolventEthyl AcetateHCID 8857—
Product8-Quinolinol, 2-(6-fluoro-1,2,4-triazolo[4,3-a]pyridin-3-yl)-HCID 1363378069%

Reaction Conditions

Temperature0 °C

Reaction Steps

A solution of 8-(tert-butyldimethylsilyloxy)-2-(6-fluoro-[1,2,4]triazolo[4,3-a]pyridin-3-yl)quinoline (560 mg, 1.4195 mmol) in THF (10.13 mL, 1.267 mmol) was cooled to 0° C. in an ice bath. TBAF (1M in THF, 2.122 mL, 2.129 mmol) was added by syringe and the mixture stirred for 1 hour at 0° C. Water was added, followed by saturated aqueous NaHCO3 solution. The mixture was transferred to a separatory funnel, diluting with EtOAc and water. The mixture was extracted with EtOAc, the combined organic layers were washed with brine, dried over Na2SO4, filtered and concentrated under reduced pressure. The residue was purified by flash column chromatography eluting with 10-15% MeOH 1% NH4OH in EtOAc to give the product as a yellow film (35 mg, 9% yield). MS APCI (+) m/z 281.2 (M+1) detected.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08987251B2
Source datasetuspto-grants-2015_03
ORD IDord-57ef37d1cb50489495fb4a6088a998cf
Source noteuspto-grants-2015_03