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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1802747Generated: October 27, 2026

Water → (2-Ethyl-pyrazolo[1,5-a]pyridin-3-yl)methanol

https://huagongshe.com/reaction/1802747

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
Reactant2-Ethyl-pyrazolo[1,5-a]pyridine-3-carboxylic acid ethyl esterHCID 13738151—
ReactantAluminium lithium hydrideHCID 21226445—
SolventTetrahydrofuranHCID 8028—
Product(2-Ethyl-pyrazolo[1,5-a]pyridin-3-yl)methanolHCID 5789926580%

Reaction Steps

A solution of 2-ethyl-pyrazolo[1,5-a]pyridine-3-carboxylic acid ethyl ester (15 g, 68.7 mmol) in tetrahydrofuran (300 mL) was cooled in an ice bath and lithium aluminum hydride (2.6 g, 68.7 mmol) was added. The reaction mixture was stirred at room temperature for 16 h. Water was added until bubbling stopped. Silica gel was added and the solvent was evaporated in vacuo. The resulting residue was purified via silica chromatography (20-100% ethyl acetate/heptane) to yield the title compound as a yellow/brown oil (9.67 g, 80% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08349883B2
Source datasetuspto-grants-2013_01
ORD IDord-3c5cefecdcfe465da5b1fdfa1119cba0
Source noteuspto-grants-2013_01