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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2284956Generated: November 1, 2026

Methanol, 1,1-diethoxy-, 1-acetate → 6-Fluoro-[1,2,4]triazolo[4,3-a]pyridine

https://huagongshe.com/reaction/2284956

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanol, 1,1-diethoxy-, 1-acetateHCID 84166—
Reactant5-Fluoro-2-hydrazinylpyridineHCID 19916786—
SolventCyclohexaneHCID 8078—
Product6-Fluoro-[1,2,4]triazolo[4,3-a]pyridineHCID 5526724570%

Reaction Steps

(5-Fluoro-pyridin-2-yl)-hydrazine (500 mg, 3.93 mmol) in diethoxymethyl acetate (5 mL) was stirred at RT for 2 h. The resulting precipitate was diluted with cyclohexane (5 ml) and filtered to give the title compound (379 mg, 70%). 1H NMR (400 MHz, CDCl3): 7.25 (1H, m), 7.84 (1H, m), 8.09 (1H, t), 8.84 (1H, s).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09145413B2
Source datasetuspto-grants-2015_09
ORD IDord-147d894373f5431cad7142216fc16447
Source noteuspto-grants-2015_09